Update padding for the helper icon. (#2106)

* Update width and height.

* Update text button icon style padding for help button.

---------

Co-authored-by: Santosh Pingle <spingle@google.com>

Author: santosh-pingle

datacapture/src/main/res/values/dimens.xml

@@ -32,6 +32,7 @@
     <dimen name="help_button_margin_start">4dp</dimen>
     <dimen name="help_button_height">24dp</dimen>
     <dimen name="help_button_width">24dp</dimen>
+    <dimen name="help_icon_padding">2dp</dimen>
     <dimen name="help_card_margin_top">16dp</dimen>
     <dimen name="help_container_margin_top">4dp</dimen>
     <dimen name="help_header_margin_bottom">4dp</dimen>

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

@@ -63,7 +63,7 @@
             name="questionnaireHelpTextStyle"
         >@style/TextAppearance.Material3.BodyMedium</item>
         <item name="questionnaireHelpButtonStyle">
-            @style/Widget.MaterialComponents.Button.TextButton.Icon
+            @style/Questionnaire.HelpIconStyle
         </item>
         <item name="questionnaireMediaImageStyle">
             @style/Questionnaire.MediaImageStyle
@@ -372,6 +372,13 @@
         >@dimen/option_item_after_text_padding</item>
     </style>
 
+  <style
+        name="Questionnaire.HelpIconStyle"
+        parent="Widget.MaterialComponents.Button.TextButton.Icon"
+    >
+    <item name="android:padding">@dimen/help_icon_padding</item>
+  </style>
+
     <style
         name="Questionnaire.EditButtonStyle"
         parent="Widget.Material3.Button.OutlinedButton.Icon"