Bump version to 4.52.0

Some SIM cards include blank values for `uaProfUrl` and `userAgent`.

Passing in these blank values along with the overrides causes a 412 precondition error when downloading MMS from ATT&T.

If these values happen to be blank, then they should be removed completely from the overrides, allowing the request to use the default `uaProfUrl` and `userAgent` for the system.

Fixes #9173

AndroidManifest.xml

@@ -188,6 +188,14 @@
             <data android:scheme="sgnl"
                   android:host="addstickers" />
         </intent-filter>
+        <intent-filter>
+            <action android:name="android.intent.action.VIEW" />
+            <category android:name="android.intent.category.DEFAULT" />
+            <category android:name="android.intent.category.BROWSABLE" />
+            <data android:scheme="https"
+                  android:host="signal.art"
+                  android:pathPrefix="/addstickers"/>
+        </intent-filter>
     </activity>
 
     <activity-alias android:name=".RoutingActivity"
@@ -248,7 +256,7 @@
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".ExperienceUpgradeActivity"
-              android:theme="@style/Theme.AppCompat.Light.NoActionBar"
+              android:theme="@style/TextSecure.LightNoActionBar"
               android:launchMode="singleTask"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
@@ -394,11 +402,7 @@
               android:theme="@style/TextSecure.LightTheme"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
-    <activity android:name=".scribbles.StickerSelectActivity"
-              android:theme="@style/TextSecure.DarkTheme"
-              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
-
-    <activity android:name=".scribbles.NewStickerSelectActivity"
+    <activity android:name=".scribbles.ImageEditorStickerSelectActivity"
               android:theme="@style/TextSecure.DarkTheme"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 

app/build.gradle

@@ -194,8 +194,8 @@ dependencyVerification {
     configuration = '(play|website)(Debug|Release)RuntimeClasspath'
 }
 
-def canonicalVersionCode = 574
-def canonicalVersionName = "4.51.1"
+def canonicalVersionCode = 580
+def canonicalVersionName = "4.52.0"
 
 def postFixSize = 10
 def abiPostFix = ['universal'   : 0,