For #2210: Improves UI of search fragment (#3773)

app/src/main/res/drawable/search_url_background.xml

@@ -5,9 +5,6 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android">
     <solid android:color="?inset"/>
 
-    <stroke android:width="1dp"
-            android:color="?inset"/>
-
     <corners android:bottomRightRadius="8dp"
              android:bottomLeftRadius="8dp"
              android:topLeftRadius="8dp"

app/src/main/res/layout/fragment_search.xml

@@ -8,13 +8,13 @@
     android:id="@+id/search_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="?above"
+    android:background="?foundation"
     tools:context=".search.SearchFragment">
 
     <androidx.constraintlayout.widget.ConstraintLayout
         android:id="@+id/toolbar_wrapper"
         android:layout_width="0dp"
-        android:layout_height="wrap_content"
+        android:layout_height="40dp"
         android:layout_margin="8dp"
         android:background="@drawable/search_url_background"
         android:outlineProvider="paddedBounds"
@@ -36,7 +36,6 @@
             android:id="@+id/toolbar_component_wrapper"
             android:layout_width="0dp"
             android:layout_height="0dp"
-            android:layout_marginStart="12dp"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/search_engine_icon"

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

@@ -8,7 +8,7 @@
     <color name="secondary_text_light_theme">@color/photonGrey50</color>
     <color name="contrast_text_light_theme">@color/primary_text_dark_theme</color>
     <color name="foundation_light_theme">#F9F9FB</color>
-    <color name="inset_light_theme">#F2F2F5</color>
+    <color name="inset_light_theme">#E6E8E8</color>
     <color name="above_light_theme">#FFF</color>
     <color name="accent_light_theme">#312A65</color>
     <color name="accent_bright_light_theme">#592ACB</color>