Update l10n XTB and messages.json for 79.0.3945.70

[mkarolin]

Fixes brave/brave-browser#7271

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Verified that these changes build without errors on
  • Android
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that these changes pass automated tests (unit, browser, security tests) on
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that all lint errors/warnings are resolved (npm run lint)
• Ran git rebase master (if needed).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Request a security/privacy review as needed.
• Add appropriate QA labels (QA/Yes or QA/No) to include the closed issue in milestone
• Public documentation has been updated as necessary. For instance:
  • https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)
  • https://github.com/brave/brave-browser/wiki/Proxy-redirected-URLs
  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protection-Mode
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-compatibility-issues-with-tracking-protection
  • https://github.com/brave/brave-browser/wiki/QA-Guide

Test Plan:

Some of the changes to test:

For 1.1.x (since 1.0):

1. Issue #2301: Enable push messaging

• Use Google Services for Push Messaging

2. Initial implementation of P3A (Privacy-Preserving Product Analytics) (#3242)

• Brave uses completely private product analytics to estimate the overall usage of certain features
• Got it
• Disable
• Automatically send completely private product analytics to Brave
• This anonymous info only lets Brave estimate the overall usage of certain features.

3. Fixes brave/brave-browser#6147 - Makes tipping banner accessible

• You can also set a monthly recurring contribution from within the Brave Rewards panel.
• Send Tip (instead of "Send my Tip")

4. Fixes brave/brave-browser#5996 - Adds new Monthly Banner

• Monthly Contribution (instead of "Tip this site monthly")
• Set... (Button text for setting monthly contribution)

For master (since Chromium 78):

1. Add webcompat issue reporting dialog (#3420)

• You’re browsing this site without Brave’s privacy and security protections...
• Report a broken site

2. BAT Points round 2.1 (#3971)

• You can now earn points for watching privacy-respecting ads.

3. Updates copy for monthly flows (#4086)

• Your monthly contributions have been processed! (instead of "Your monthly tips have been processed!")

Note: some Croatian translations weren't delivered on time.

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions
• Verify test plan is specified in PR before merging to source

After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on.
• All relevant documentation has been updated.

[bsclifton]

LGTM! 😄👍