Fix fallback avatar icon direction in RTL

Fixes a bug where the note to self icon was not displayed as mirrored for right-to-left locales.

app/src/main/java/org/thoughtcrime/securesms/avatar/fallback/FallbackAvatarDrawable.kt

@@ -10,6 +10,7 @@ import android.content.res.ColorStateList
 import android.graphics.Canvas
 import android.graphics.Rect
 import android.graphics.drawable.Drawable
+import android.os.Build
 import androidx.core.content.ContextCompat
 import com.airbnb.lottie.SimpleColorFilter
 import com.google.android.material.shape.MaterialShapeDrawable
@@ -57,6 +58,9 @@ class FallbackAvatarDrawable(
         )
 
         resourceIcon.bounds = iconBounds
+        if (Build.VERSION.SDK_INT >= 23) {
+          resourceIcon.setLayoutDirection(layoutDirection)
+        }
         resourceIcon
       }
 

app/src/main/res/drawable/symbol_note_24.xml

@@ -1,6 +1,7 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
+    android:autoMirrored="true"
     android:viewportWidth="24"
     android:viewportHeight="24">
     <path

app/src/main/res/drawable/symbol_note_compact_16.xml

@@ -1,6 +1,7 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="16dp"
     android:height="16dp"
+    android:autoMirrored="true"
     android:viewportWidth="16"
     android:viewportHeight="16">
     <path

app/src/main/res/drawable/symbol_note_display_bold_40.xml

@@ -1,6 +1,7 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="40dp"
     android:height="40dp"
+    android:autoMirrored="true"
     android:viewportWidth="40"
     android:viewportHeight="40">
     <path