Tweak bottom padding for the "..." popup hint

Follow up to I45bd6edf

bug: 5255103

Change-Id: I6d5368dadbaf6c7dffadd783d8a8756fea9dbff7
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index 0e8216b..9fa4d84 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -52,6 +52,7 @@
         <item name="keyUppercaseLetterActivatedColor">#CCE0E4E5</item>
         <item name="keyLabelHorizontalPadding">@dimen/key_label_horizontal_padding</item>
         <item name="keyHintLetterPadding">@dimen/key_hint_letter_padding</item>
+        <item name="keyPopupHintLetterPadding">@dimen/key_popup_hint_letter_padding</item>
         <item name="keyUppercaseLetterPadding">@dimen/key_uppercase_letter_padding</item>
         <item name="keyPreviewLayout">@layout/key_preview</item>
         <item name="keyPreviewBackground">@drawable/keyboard_key_feedback</item>