Tune mini keyboard visual

This change only gets rid of the surrounding paddings of the mini keyboard.

Bug: 5248783
Change-Id: Idb95ac1467085c230fd60e4bc0f466fef5700bfb
diff --git a/java/res/values/themes-basic-highcontrast.xml b/java/res/values/themes-basic-highcontrast.xml
index a45fa52..ce05980 100644
--- a/java/res/values/themes-basic-highcontrast.xml
+++ b/java/res/values/themes-basic-highcontrast.xml
@@ -19,6 +19,7 @@
         <item name="keyboardStyle">@style/Keyboard</item>
         <item name="latinKeyboardStyle">@style/LatinKeyboard</item>
         <item name="keyboardViewStyle">@style/KeyboardView.HighContrast</item>
+        <item name="miniKeyboardStyle">@style/MiniKeyboard</item>
         <item name="miniKeyboardViewStyle">@style/MiniKeyboardView</item>
         <item name="miniKeyboardPanelStyle">@style/MiniKeyboardPanelStyle</item>
         <item name="suggestionsStripBackgroundStyle">@style/SuggestionsStripBackgroundStyle</item>