This TextView class extends the AppCompatTextView class from androidx.
These changes (only in XML ressources) allow us to share the selected text by using ShareUtils.shareText, which opens the Android system chooser instead of the Huawei system chooser on EMUI devices.
For all manually-created images PNG have been kept.
- rename all icon attrs to have a `ic_` prefix
- always use `_24dp` icons, because there is no real difference, since they are vector drawables
- always use the original name found on material.io for icon drawables, as to not create confusion and possibly duplicates. Icon names can still be different from real drawable names, though I have made some of them compliant to this or maybe more meaningul.
- remove duplicate `getIconByAttr()` in ThemeHelper (use `resolveResourceIdFromAttr()`
- use standard icons for `expand_more` and `expand_less` instead of triangles
- use `play_button_outline` instead of custom PNG as play button in VideoDetailFragment (questionable, as there is no shadow anymore)
-Added add to playlist option for videos available as base list items.
-Moved video count to second row on local playlist header.
-Removed bottom line on playlist control UI.
-Removed stream id from playlist stream join table since only foreign constraint is needed.
-Added bar to playlist control UI.
-Modified local playlist fragment to no longer save when out of focus.
