Upgrade ESLint and introduce Prettier (#2451)

* Use shared eslint config and introduce Prettier

* Fix eslint issues

* Add prettier config

* Apply Prettier

* Rely on eslint and prettier in github checks

* Bring back the format command

* Fix lint issues after merge

.github/ISSUE_TEMPLATE/breakage-form.yml

@@ -1,68 +1,68 @@
 ---
 name: Site Breakage Form
 description: Report a website issue on a DuckDuckGo app or browser extension
-title: "Broken Site: "
+title: 'Broken Site: '
 body:
-  - type: markdown
-    attributes:
-      value: |
-        Thanks for reporting a broken site! Please add the domain you're reporting to the title of this issue above.
-  - type: textarea
-    id: urls
-    attributes:
-      label: URLs affected
-      description: On which URLs are you seeing the problem?
-      placeholder: https://example.com/page.html?product=shoes
-    validations:
-      required: true
-  - type: textarea
-    id: description
-    attributes:
-      label: Description of Breakage
-      description: What is broken and how it is broken? (Include screenshots if possible)
-      placeholder: Page is blank for 5s after loading
-    validations:
-      required: true
-  - type: checkboxes
-    id: affected-platforms
-    attributes:
-      label: Affected Platforms
-      description: Which DuckDuckGo products are affected by this breakage?
-      options:
-        - label: Browser Extensions
-        - label: Android Browser
-        - label: iOS Browser
-        - label: macOS Browser
-        - label: Windows Browser
-    validations:
-      required: true
-  - type: textarea
-    id: other
-    attributes:
-      label: Other Details
-      description: Any other information that might help us to investigate and fix your reported site?
-  - type: markdown
-    attributes:
-      value: |
-        ## Additional Information
-  - type: dropdown
-    id: disable-privacy-protection
-    attributes:
-      label: Tested without Privacy Protections
-      description: Does the site work if Privacy Protections are turned off?
-      options:
-        - "Yes"
-        - "No"
-        - "I don't know what this means"
-    validations:
-      required: true
-  - type: dropdown
-    id: verified-on-other-browsers
-    attributes:
-      label: Verified on other browsers
-      description: Does this breakage occur on other non-DuckDuckGo browsers?
-      options:
-        - "Yes"
-        - "No"
-    validations:
-      required: true
+    - type: markdown
+      attributes:
+          value: |
+              Thanks for reporting a broken site! Please add the domain you're reporting to the title of this issue above.
+    - type: textarea
+      id: urls
+      attributes:
+          label: URLs affected
+          description: On which URLs are you seeing the problem?
+          placeholder: https://example.com/page.html?product=shoes
+      validations:
+          required: true
+    - type: textarea
+      id: description
+      attributes:
+          label: Description of Breakage
+          description: What is broken and how it is broken? (Include screenshots if possible)
+          placeholder: Page is blank for 5s after loading
+      validations:
+          required: true
+    - type: checkboxes
+      id: affected-platforms
+      attributes:
+          label: Affected Platforms
+          description: Which DuckDuckGo products are affected by this breakage?
+          options:
+              - label: Browser Extensions
+              - label: Android Browser
+              - label: iOS Browser
+              - label: macOS Browser
+              - label: Windows Browser
+      validations:
+          required: true
+    - type: textarea
+      id: other
+      attributes:
+          label: Other Details
+          description: Any other information that might help us to investigate and fix your reported site?
+    - type: markdown
+      attributes:
+          value: |
+              ## Additional Information
+    - type: dropdown
+      id: disable-privacy-protection
+      attributes:
+          label: Tested without Privacy Protections
+          description: Does the site work if Privacy Protections are turned off?
+          options:
+              - 'Yes'
+              - 'No'
+              - "I don't know what this means"
+      validations:
+          required: true
+    - type: dropdown
+      id: verified-on-other-browsers
+      attributes:
+          label: Verified on other browsers
+          description: Does this breakage occur on other non-DuckDuckGo browsers?
+          options:
+              - 'Yes'
+              - 'No'
+      validations:
+          required: true

.github/dependabot.yml

@@ -1,21 +1,21 @@
 version: 2
 updates:
-  - package-ecosystem: "npm"
-    directory: "/"
-    schedule:
-      interval: "daily"
-    open-pull-requests-limit: 20
-    target-branch: "main"
-    labels:
-      - "dependencies"
-    groups:
-      build:
-        patterns:
-          - "eslint*"
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-    target-branch: "main"
-    labels:
-      - "dependencies"
+    - package-ecosystem: 'npm'
+      directory: '/'
+      schedule:
+          interval: 'daily'
+      open-pull-requests-limit: 20
+      target-branch: 'main'
+      labels:
+          - 'dependencies'
+      groups:
+          build:
+              patterns:
+                  - 'eslint*'
+    - package-ecosystem: 'github-actions'
+      directory: '/'
+      schedule:
+          interval: 'weekly'
+      target-branch: 'main'
+      labels:
+          - 'dependencies'

.github/pull_request_template.md

@@ -1,4 +1,4 @@
-<!-- 
+<!--
   ⚠️ ⚠️ IF YOU ARE MODIFYING `index.js` OR A FILE IN `features` ⚠️ ⚠️
   Please request a review and ping a DRI from the Config AOR or Breakage AOR.
   The quickest way to get attention for your PR is to ping the ~Breakage channel
@@ -10,16 +10,16 @@
   as it's reviewed.
 -->
 
-
 **Asana Task/Github Issue:**
 
 ## Description
+
 <!--
 If this is a SITE BREAKAGE MITIGATION, please include a BRIEF EXPLANATION that covers the REPORTED URL, the PLATFORMS AFFECTED, and the TRACKER(S) being unblocked or FEATURE being disabled, as well as a mention of the PROBLEM(S) users are experiencing. Please also check that you have referenced the URL of this PR as the "reason" value for the exception (where applicable).
 -->
 
 #### Reference
-- [Config Reviewer Documentation](https://app.asana.com/0/1200890834746050/1204443212791216/f)
-- [Config Maintainer Documentation](https://app.asana.com/0/1200890834746050/1200573250322769/f)
-- [Feature Implementer Documentation](https://app.asana.com/0/1200890834746050/1201498956177210/f)
 
+-   [Config Reviewer Documentation](https://app.asana.com/0/1200890834746050/1204443212791216/f)
+-   [Config Maintainer Documentation](https://app.asana.com/0/1200890834746050/1200573250322769/f)
+-   [Feature Implementer Documentation](https://app.asana.com/0/1200890834746050/1201498956177210/f)