git_ui: Update commit composer and git status entry UI

[iamnbutler]

Blocked on:

• No way to get # of lines changed (added/removed)
• Need methods for:
  • commit
  • stage
  • unstage
  • revert_all - Similar to Editor::RevertFile, but for all changes in the project

TODO:

• Update checkbox visual style to match figma

• Update panel button style to filled

• Panel header

  • Correct 1 change suffix (1 changes -> 1 change)
  • Add lines changed badge
  • Add context menu button (...)
  • Add context menu
  • Wire up Revert All

• Entry List

  • Revert unwanted ListItem styling
  • Add selected, hover states
  • Add scrolled_to_top, scrolled_to_bottom
  • Show gradient overflow indicator
  • Add JumpToTop, JumpToBottom actions to the list, bind to shift + arrow keys
  • Remove wrapping from keyboard movement

• Entry

  • Style deleted entries with a strikethrough
  • ... on hover or selected
  • Add context menu

• Composer

  • Todo...

Release Notes:

• N/A

[xtanion]

Are we getting this feature on the next alpha or stable release?

[iamnbutler]

Are we getting this feature on the next alpha or stable release?

Not yet, but soon! We are working away at all the rough edges and getting everything in place. Shouldn't be too long now :)

[xtanion]

Would love to see this feature, Thanks a lot.