Fix unread count font scaling.

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

@@ -4,6 +4,5 @@
     android:shape="rectangle">
 
     <corners android:radius="@dimen/unread_count_bubble_radius" />
-
     <solid android:color="@color/core_ultramarine" />
 </shape>

app/src/main/res/layout/conversation_list_item_view.xml

@@ -146,16 +146,16 @@
             android:id="@+id/conversation_list_item_unread_indicator"
             style="@style/Signal.Text.Caption"
             android:layout_width="wrap_content"
-            android:layout_height="@dimen/unread_count_bubble_diameter"
+            android:layout_height="wrap_content"
             android:layout_marginStart="12dp"
+            android:minWidth="18dp"
             android:background="@drawable/unread_count_background_new"
             android:fontFamily="sans-serif-medium"
-            android:gravity="center"
             android:includeFontPadding="false"
-            android:minWidth="@dimen/unread_count_bubble_diameter"
-            android:minHeight="@dimen/unread_count_bubble_diameter"
-            android:paddingStart="5dp"
-            android:paddingEnd="5dp"
+            android:paddingStart="6dp"
+            android:paddingEnd="6dp"
+            android:paddingTop="2dp"
+            android:paddingBottom="2dp"
             android:textColor="@color/core_white"
             tools:text="99+" />