backport: bitcoin-core#gui18, #121, #257, #263, #281, #335, #362, #828, bitcoin#21912, #21942, #21988

[knst]

Issue being fixed or feature implemented

Just regular backports from bitcoin v22, mostly Qt related

What was done?

See commits for a list of backports.

This PR also fixes a rendering an url on Governance tab if it has any '&' inside. see screenshots.

Original url: https://example.com/?test=nothing&to=see&&lol - yes, double '&&' just for test even if url is silly. Failed behaviour: Correctly rendered:

How Has This Been Tested?

Run unit/functional tests

Breaking Changes

N/A

Checklist:

• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have added or updated relevant unit/integration/functional/e2e tests
• [ ] I have made corresponding changes to the documentation
• [x] I have assigned this pull request to a milestone

[knst]

gui-263 requires follow-up: 3f68f02db9 | Merge bitcoin-core/gui#362: Add keyboard shortcuts to context menus