Fix extended fab height, make text bolder (fixes #2900)

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

@@ -124,10 +124,12 @@
         <item name="android:layout_height">wrap_content</item>
         <item name="android:layout_width">wrap_content</item>
         <item name="fabCustomSize">@dimen/fab_size</item>
+        <item name="android:minHeight">@dimen/fab_size</item>
         <item name="android:layout_gravity">bottom|end</item>
         <item name="android:layout_margin">@dimen/fab_margin</item>
         <item name="android:scaleType">fitCenter</item>
         <item name="layout_anchorGravity">bottom|right|end</item>
+        <item name="android:fontFamily">sans-serif-medium</item>
     </style>
 
     <style name="Theme.Widget.CardView" parent="CardView">