* Implement "Desktop Welcome Pages" feature
* Split BraveBrowserCommandHandler out from brave_education
* An attempt to make browser commands closer match upstream.
- brave_education is based on whats_new
- brave_browser_commands is based on browser_commands
Fixes https://github.com/brave/brave-browser/issues/42562
Uses `use_brave_grit` / `brave_or_default_grit` as a
work-around to avoid patching the resources IDs in
`tools/gritsettings/resource_ids.spec`.
* Addressing all review feedback
Includes presubmit fixes and Chromium 133 rebase fixes
* Security review updates
* FIXUP: small review fixes
Fixed misspellings
* Fix for browser test
* FIXUP: fix VPN handler behavior case after refactor
Fixes Linux unit test
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Co-authored-by: Brian Clifton <brian@clifton.me>
