Make party invite screen clearer

Habitica/res/menu/menu_party_invite.xml

@@ -1,6 +1,6 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools">
-    <item android:id="@+id/action_send_invites" android:title="@string/invite"
+    <item android:id="@+id/action_send_invites" android:title="@string/send_invites"
         android:orderInCategory="100" app:showAsAction="always" />
 </menu>

Habitica/res/values/strings.xml

@@ -889,4 +889,5 @@
     <string name="facebook">Facebook</string>
     <string name="apple_sign_in">Sign in with Apple</string>
     <string name="google">Google</string>
+    <string name="send_invites">Send Invites</string>
 </resources>

Habitica/src/main/java/com/habitrpg/android/habitica/ui/activities/GroupInviteActivity.kt

@@ -57,11 +57,7 @@ class GroupInviteActivity : BaseActivity() {
         setupToolbar(toolbar)
         viewPager.currentItem = 0
 
-        if (intent.getStringExtra("groupType") == "party") {
-            supportActionBar?.title = getString(R.string.invite_to_party)
-        } else {
-            supportActionBar?.title = getString(R.string.invite_to_guild)
-        }
+        supportActionBar?.title = null
 
         setViewPagerAdapter()
     }