music: hide quality tags for now

Hide the new quality tags option for now.

This is not because I wanted to, but rather because of me wanting to
reduce the amount of bugs I will likely be thrown due to the release
of automatic rescanning.

CHANGELOG.md

@@ -6,7 +6,6 @@
 - Massively overhauled how music is loaded [#72]:
 	- Auxio can now reload music without requiring a restart
 	- Added a new option to reload music when device files change
-- Added direct metadata parsing, allowing more correct metadata at the cost of longer loading times
 - Added a shuffle shortcut
 - Widgets now have a more sleek and consistent button layout
 - "Rounded album covers" is now "Round mode"

app/src/main/res/xml/prefs_main.xml

@@ -183,6 +183,7 @@
             app:allowDividerBelow="false"
             app:defaultValue="false"
             app:iconSpaceReserved="false"
+            app:isPreferenceVisible="false"
             app:key="@string/set_key_quality_tags"
             app:summary="@string/set_quality_tags_desc"
             app:title="@string/set_quality_tags" />

info/FAQ.md

@@ -40,8 +40,8 @@ often than not it results in UTF-8 tags (Seen on FLAC/OGG/OPUS files most often)
 This is expected since reading from the audio database takes awhile, especially with libraries containing 10k songs or more.
 
 #### Auxio does not detect new music!
-This is a current limitation with the music loader. To remedy this, go to Settings -> Reload music whenever new songs are added.
-I hope to make the app rescan music on the fly eventually.
+This is Auxio's default behavior due to limitations regarding android's filesystem APIs. To enable such behavior, turn on
+"Automatic reloading" in settings. Note that this option does require a persistent notification and higher battery usage.
 
 #### Why does playback pause whenever music is reloaded?
 Whenever the music library signifigantly changes, updating the player's data while it is still playing may result in