Fix #8070: Support 'Clean Copy Link' from Sharesheet

[soner-yuksel]

Summary of Changes

Adding copy clean link to share sheet activity list

This pull request fixes #8070

Submitter Checklist:

• [x] Unit Tests are updated to cover new or changed functionality
• [x] User-facing strings use NSLocalizableString()
• [x] New or updated UI has been tested across:
  • [x] Light & dark mode
  • [x] Different size classes (iPhone, landscape, iPad)
  • [x] Different dynamic type sizes

Test Plan:

1. Click on the share button both from bottomtool bar and settings
2. Sharesheet is displayed with 'Copy Clean Link' option
3. Clicks on option in sharesheet and has the link with tracking params stripped copied to keyboard

Screenshots:

https://github.com/brave/brave-ios/assets/6643505/59ff6022-5da8-44f6-8bf2-80cd22bffe0a

Reviewer Checklist:

• [ ] Issues include necessary QA labels:
  • QA/(Yes|No)
  • bug / enhancement
• [ ] Necessary security reviews have taken place.
• [ ] Adequate unit test coverage exists to prevent regressions.
• [ ] Adequate test plan exists for QA to validate (if applicable).
• [ ] Issue and pull request is assigned to a milestone (should happen at merge time).

[github-actions[bot]]

[puLL-Merge] - brave/brave-ios@8626

Description

This pull request removes several activities related to sharing and managing web content and adds a new makeShareActivities method and presentActivityViewController method to handle web content sharing activities within BrowserViewController.

Changes

### Changes - Removed `makeShareActivities` and `presentActivityViewController` from `BrowserViewController` - Added `makeShareActivities` and `presentActivityViewController` to `BrowserViewController` - Removed several activity classes related to sharing and managing web content

Security Hotspots

No security hotspots identified in this change.