ADS: GPC screen migration (#2557)

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Task/Issue URL: https://app.asana.com/0/0/1203418963160798/f

### Description
Global Privacy Control screen 100% migrated to new components

### Steps to test this PR

- Install from this branch
- Go to Settings > Global Privacy Control (GPC)
- [ ] Check screen looks as expected

### UI changes
| Before  | After |
| ------ | ----- |

![Screenshot_20221124-100149_DuckDuckGo](https://user-images.githubusercontent.com/20798495/203757021-1b931a7a-dfbb-41fb-92af-e30c6faa88f9.jpg)|![Screenshot_20221124-100405_DuckDuckGo](https://user-images.githubusercontent.com/20798495/203757276-10fd5129-0a87-45ae-a864-695c2b1c6793.jpg)|

![Screenshot_20221124-100341_DuckDuckGo](https://user-images.githubusercontent.com/20798495/203757037-57eb0cff-cd1b-4342-bece-42d22f06ea46.jpg)|![Screenshot_20221124-100356_DuckDuckGo](https://user-images.githubusercontent.com/20798495/203757306-54f4072d-22c1-4bd5-91a7-dc9fc4b73851.jpg)|

app/src/main/java/com/duckduckgo/app/globalprivacycontrol/ui/GlobalPrivacyControlActivity.kt

@@ -77,6 +77,7 @@ class GlobalPrivacyControlActivity : DuckDuckGoActivity() {
                     gpcSpannableString.getSpanFlags(it),
                 )
                 removeSpan(it)
+                trim()
             }
         }
         binding.globalPrivacyControlDescription.apply {

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

@@ -17,42 +17,29 @@
   -->
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:tools="http://schemas.android.com/tools"
-              xmlns:app="http://schemas.android.com/apk/res-auto"
-              android:layout_width="match_parent"
-              android:layout_height="match_parent"
-              android:orientation="vertical"
-              tools:context="com.duckduckgo.app.globalprivacycontrol.ui.GlobalPrivacyControlActivity">
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
 
     <include
         android:id="@+id/includeToolbar"
         layout="@layout/include_default_toolbar" />
 
-    <LinearLayout
-        android:orientation="vertical"
+    <com.duckduckgo.mobile.android.ui.view.text.DaxTextView
+        android:id="@+id/globalPrivacyControlDescription"
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
-        <com.google.android.material.textview.MaterialTextView
-            android:id="@+id/globalPrivacyControlDescription"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:fontFamily="sans-serif"
-            android:layout_margin="16dp"
-            android:paddingTop="12dp"
-            android:lineSpacingExtra="4sp"
-            android:text="@string/globalPrivacyControlDescription"
-            android:textColor="?attr/settingsMinorTextColor"
-            android:textSize="14sp"
-            android:textStyle="normal" />
-
-        <com.duckduckgo.mobile.android.ui.view.listitem.OneLineListItem
-            android:id="@+id/globalPrivacyControlToggle"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            app:primaryText="@string/globalPrivacyControlToggle"
-            app:showSwitch="true"/>
-
-    </LinearLayout>
+        android:layout_height="wrap_content"
+        android:layout_margin="@dimen/keyline_4"
+        android:text="@string/globalPrivacyControlDescription"
+        app:textType="secondary"
+        app:typography="body2" />
+
+    <com.duckduckgo.mobile.android.ui.view.listitem.OneLineListItem
+        android:id="@+id/globalPrivacyControlToggle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:primaryText="@string/globalPrivacyControlToggle"
+        app:showSwitch="true" />
 
 </LinearLayout>