Added missing entries for discord's new app icons

[NeoNyaa]

Discord and Vendetta were missing entries for the other app icons available for a user to chose from.

Vanilla Discord had entries for the default app icon as well as for the Galaxy icon BrandDark icon and the CherryBlossom icon.

Vendetta had entries for the default app icon as well as for the Blush icon.

I have added more entries allowing for Arcticons to apply automatically whenever a user changes the icon within the Discord app.

----
Hope I didnt break the guidelines, I dont make many pull requests as I'm not exactly sure how they work xD

[Donnnno]

wow, great work adding these!

[TotallyAvailable]

Would answer #1753 (comment) I assume
(Every Single Telegram fork adding another 12 Entries each)

[Package name]/org.telegram.messenger.DefaultIcon"

  android:name="org.telegram.messenger.AquaIcon"

  android:name="org.telegram.messenger.PremiumIcon"

  android:name="org.telegram.messenger.TurboIcon"

  android:name="org.telegram.messenger.NoxIcon"

  android:name="org.telegram.messenger.MerioIcon"

  android:name="org.telegram.messenger.RainbowIcon"

  android:name="org.telegram.messenger.OldSchoolIcon"
 
  android:name="org.telegram.messenger.MusheenIcon"

  android:name="org.telegram.messenger.SpaceIcon"
  
  android:name="org.telegram.messenger.CloudIcon"
 
  android:name="org.telegram.messenger.NeonIcon"

  android:name="org.telegram.messenger.MaterialIcon"

and while I'm at it (the complete Discord Set)

  android:name="com.discord.main.MainDefault"

  android:name="com.discord.main.MainBrandInverted"

  android:name="com.discord.main.MainMatteDark"

  android:name="com.discord.main.MainMatteLight"

  android:name="com.discord.main.MainBrandDark"

  android:name="com.discord.main.MainPastel"

  android:name="com.discord.main.MainPirate"

  android:name="com.discord.main.MainCamo"

  android:name="com.discord.main.MainSunset"

  android:name="com.discord.main.MainGalaxy"

  android:name="com.discord.main.MainY2K"

  android:name="com.discord.main.MainCherryBlossom"

  android:name="com.discord.main.MainBeanie"

  android:name="com.discord.main.MainGaming"

  android:name="com.discord.main.MainCircuit"

  android:name="com.discord.main.MainHoloWaves"

  android:name="com.discord.main.MainBlush"

  android:name="com.discord.main.MainAngry"

  android:name="com.discord.main.MainManga"

  android:name="com.discord.main.MainController"

  android:name="com.discord.main.MainMushroom"

  android:name="com.discord.main.MainZombie"

  android:name="com.discord.main.MainClydeStein"
  
  android:name="com.discord.main.MainSlimy"
  
  android:name="com.discord.main.MainDrip"