Switch from FAST to Lit

[d13]

Switch all remaining components from @microsoft/fast-element to lit:

• [x] git-avatars (delete)
• [x] issue-row (delete, not in use)
• [x] pull-request-row (delete, not in use)
• [x] minimap
• [x] action-nav
• [x] avatar-item (delete, use shared library component)
• [x] avatar-stack (delete, use shared library component)
• [x] number-converter (delete, after converting deps)
• [x] menu-divider (convert to lit)
• [x] menu-item (convert to lit)
• [x] menu-label (convert to lit)
• [x] menu-list (convert to lit)
• [x] pop-over (convert to lit)
• [x] pop-menu (convert to lit)
• [x] search-box
• [x] search-input
• [x] a11y (convert to lit)
• [x] base (delete, after converting deps)
• [x] table-cell (delete, not in use)
• [x] table-container (delete, not in use)
• [x] table-row (delete, not in use)

Replace usage of @vscode/webview-ui-toolkit:

• [x] VSCodeCheckbox, VSCodeRadio, VSCodeRadioGroup react components in Commit Graph (create components)
• [x] vsCodeDropdown, vsCodeOption web components in Visual File History (use html select)

[d13]

See the feature/no-fast-element branch for most of this progress: https://github.com/gitkraken/vscode-gitlens/compare/main...feature/no-fast-element

[d13]

See 0a55bd47ea6764bb7b1b406fca86875cdc4395da, 5620be44827aef807bb04338e58c463c1cbbc390, 9e709d706a7581647b69123c76cadc6fb9897a83, 9e709d706a7581647b69123c76cadc6fb9897a83