removal of textColor from base application theme (#31487)

Summary:
#31345

The issue to` android/app/src/main/res/values/styles.xml.`
In the base application theme, there is an explicitly added item
`<item name="android:textColor">#000000</item>`
This leads the `textColor` of the app to be black even though the theme is actually DayNight.
A permanent fix would be to not have this item added by default when creating a new project, as it is buggy behavior

## Changelog

[General] [removed] -  line `<item name="android:textColor">#000000</item>` in this file `android/app/src/main/res/values/styles.xml `for the inital setup

Pull Request resolved: #31487

Test Plan: Removing this has fixed the issue for me.

Reviewed By: yungsters

Differential Revision: D28966678

Pulled By: ShikaSD

fbshipit-source-id: 57c6b4b7b5f11847ea6e611c7567c0c03133c79d

template/android/app/src/main/res/values/styles.xml

@@ -3,7 +3,6 @@
     <!-- Base application theme. -->
     <style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
         <!-- Customize your theme here. -->
-        <item name="android:textColor">#000000</item>
     </style>
 
 </resources>