feat(ui): add AMusic (Apple Music inspired) theme (#4723)

* first show at AMuisc Theme

* prettier

* fix Duplicate key 'MuiButton'

* fix file name

* Update amusic.js

* Add styles for NDAlbumGridView in amusic.js

* Fix MuiToolbar background property in amusic.js

* Fix syntax error in amusic.js background property

* run prettier

* fix banded table styling and more

* more styling to player

- fix some appearances of green in queue
- match queue styling to rest of theme
- round albumart in player and prevent rotation

* fix queue panel background and border

to make it stand out more against the background

* fix stray comma

and lint+prettier

* queue hover still green

and player preview image not rounded properly

* Update amusic.css.js

* more mobile color fixes

* artist page

* prettier

* rounded art in albumgridview

* small tweaks to colors and radiuses

* artist and album heading

* external links colors

* unify font colors + albumgrid corner radius

* get rid of queue hover green

* unify colors in player

same red shades as primary

* mobile player floating panel background shade of green

* unify border colors

and attempt to get album cover corner radius working

* final touches

* Update amusic.css.js

* fix invisible button color fir muibutton

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* fix css syntax on player queue color overrides

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* remove unused MuiTableHead

* sort theme list in index.js alphabetically

* remove unused properties

* Revert "fix css syntax on player queue color overrides"

This reverts commit 503bba321d958aed5251667c58214822ceb70f59.

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

ui/src/themes/index.js

@@ -10,6 +10,7 @@ import NordTheme from './nord'
 import GruvboxDarkTheme from './gruvboxDark'
 import CatppuccinMacchiatoTheme from './catppuccinMacchiato'
 import NuclearTheme from './nuclear'
+import AmusicTheme from './amusic'
 
 export default {
   // Classic default themes
@@ -17,6 +18,7 @@ export default {
   DarkTheme,
 
   // New themes should be added here, in alphabetic order
+  AmusicTheme,
   CatppuccinMacchiatoTheme,
   ElectricPurpleTheme,
   ExtraDarkTheme,