Update Issue templates (PX4#21779)

- Remove unnecessary text rendering, which made clicking log links
  harder
- Re adjust markdown elements to make it easier to read / intuitive when
  creating an issue

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,6 +1,6 @@
 name: 🐛 Bug report
 description: Create a report to help us improve
-title: "[Bug]: "
+title: "[Bug] "
 labels: ["bug-report"]
 body:
   - type: textarea
@@ -44,14 +44,13 @@ body:
           - Share the link to the log (Copy and paste the URL of the log)
       placeholder: |
           # PASTE HERE THE LINK TO THE LOG
-      render: txt
     validations:
       required: true
 
   - type: markdown
     attributes:
       value: |
-        # Setup / Versions
+        ## Setup
 
   - type: textarea
     attributes:
@@ -60,7 +59,6 @@ body:
           Which version of PX4 are you using?
       placeholder: |
           # If you don't know the version, paste the output of `ver all` in the MAVLink Shell of QGC
-      render: txt
     validations:
       required: true
 

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,11 +1,11 @@
 name: 🚀 Feature Request
 description: Suggest an idea for this project
-labels: [feature-request"]
+labels: ["feature-request"]
 body:
   - type: markdown
     attributes:
       value: |
-        **Please note that feature requests are not 'fire and forget'.**
+        ## Please note that feature requests are not 'fire and forget'
         It is a lot more likely that the feature you would like to have will be implemented if you keep watching your feature request, and provide more details to developers looking into implementing your feature, and help them with testing.
 
   - type: textarea