Adjust padding, margin of tabs in the WidgetsFullSheet

Also remove elevation set to tab to remove unwanted shadow.

Test: Set up a work profile. Then, open the full widgets picker.
      Observe padding & margin of the work / personal tabs.
Bug: 188221455
Change-Id: I761cb1c1410f87c80a5fdca3803fb8b099d499d6
diff --git a/res/layout/widgets_full_sheet_paged_view.xml b/res/layout/widgets_full_sheet_paged_view.xml
index 580ca49..f0ddc2b 100644
--- a/res/layout/widgets_full_sheet_paged_view.xml
+++ b/res/layout/widgets_full_sheet_paged_view.xml
@@ -21,6 +21,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:clipToPadding="false"
+        android:paddingTop="@dimen/widget_picker_view_pager_top_padding"
         android:descendantFocusability="afterDescendants"
         launcher:pageIndicator="@+id/tabs">
 
diff --git a/res/layout/widgets_personal_work_tabs.xml b/res/layout/widgets_personal_work_tabs.xml
index 72d83e8..15275a6 100644
--- a/res/layout/widgets_personal_work_tabs.xml
+++ b/res/layout/widgets_personal_work_tabs.xml
@@ -20,10 +20,9 @@
     android:id="@+id/tabs"
     android:layout_width="match_parent"
     android:layout_height="@dimen/all_apps_header_pill_height"
-    android:layout_marginHorizontal="16dp"
+    android:layout_marginHorizontal="32dp"
     android:orientation="horizontal"
     android:background="@drawable/all_apps_tabs_background"
-    android:elevation="2dp"
     style="@style/TextHeadline">
 
     <Button
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index bfa02c0..2882b1f 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -146,6 +146,8 @@
     <dimen name="widget_picker_education_tip_width">120dp</dimen>
     <dimen name="widget_picker_education_tip_min_margin">4dp</dimen>
 
+    <dimen name="widget_picker_view_pager_top_padding">16dp</dimen>
+
     <!-- Padding applied to shortcut previews -->
     <dimen name="shortcut_preview_padding_left">0dp</dimen>
     <dimen name="shortcut_preview_padding_right">0dp</dimen>