Fixing WKNavigationDelegateProxy

[NachoEmbrace]

We were implementing every method of the WKNavigationDelegate protocol which could cause issues when the original delegates didn't have an implementation.

This PR removes the implementations for methods that were not being used, and the forwarding is now handled by overriding responds(to:) and forwardingTarget(for:).

This is the same solution that we used in our URLSessionDelegateProxy.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details

Scanned Files

[github-actions]

• ⚠️ Line should be 120 characters or less; currently it has 123 characters (line_length)

[codecov]

Codecov Report

Attention: Patch coverage is 93.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 91.84%. Comparing base (b2da5ac) to head (a902c9b).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...re/Capture/WebView/WKNavigationDelegateProxy.swift	87.50%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #110      +/-   ##
==========================================
- Coverage   91.95%   91.84%   -0.12%     
==========================================
  Files         408      410       +2     
  Lines       26457    26459       +2     
==========================================
- Hits        24329    24300      -29     
- Misses       2128     2159      +31     

Files with missing lines	Coverage Δ
...pture/WebView/WKNavigationDelegateProxyTests.swift	100.00% <100.00%> (ø)
...re/Capture/WebView/WKNavigationDelegateProxy.swift	92.85% <87.50%> (-5.76%)	⬇️

... and 6 files with indirect coverage changes