Removed emoji characters from the (app) strings.xml file.

Author: gubo

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

@@ -27,15 +27,15 @@
     <string name="google_tos_label">Google TOS</string>
     <string name="firebase_tos_label">Firebase TOS</string>
     <string name="tos_header">Terms of Service URL:</string>
-    <string name="unknown_response">Unexpected onActivityResult response code 😐</string>
+    <string name="unknown_response">Unexpected onActivityResult response code</string>
     <string name="ok_label">OK</string>
-    <string name="unknown_sign_in_response">Unknown response from AuthUI sign-in 😓</string>
-    <string name="sign_in_cancelled">Sign in cancelled 😔</string>
+    <string name="unknown_sign_in_response">Unknown response from AuthUI sign-in</string>
+    <string name="sign_in_cancelled">Sign in cancelled</string>
     <string name="signed_in_header">You are signed in!</string>
     <string name="sign_out">Sign out</string>
     <string name="delete_account_label">Delete account</string>
-    <string name="sign_out_failed">Sign out failed 😨</string>
-    <string name="delete_account_failed">Delete account failed 😨</string>
+    <string name="sign_out_failed">Sign out failed</string>
+    <string name="delete_account_failed">Delete account failed</string>
     <string name="user_profile_header">User profile:</string>
     <string name="profile_picture_content_desc">Profile picture</string>
     <string name="default_theme">Default theme</string>