Merge branch '5.3' into 5.4

* 5.3:
  Added italian missing translation
  Fix persian (fa) translation
  [Notifier][RocketChat] Fix undefined index for message id
  Add missing translation for Estonian
  Add validator missing french translation
  Add missing translation
  [Security][Validator] Add missing translations for Gallician (gl)
  Update validators.ar.xlf
  [Notifier] Fix 'Undefined array key' error in FirebaseTransport
  bug #43038 [Validator] Fixes URL validation for single-char subdomains.

Author: derrabus

Resources/translations/security.fa.xlf

@@ -32,7 +32,7 @@
             </trans-unit>
             <trans-unit id="9">
                 <source>No authentication provider found to support the authentication token.</source>
-                <target>هیچ ارایه دهنده احراز هویتی برای پشتیبانی از توکن احراز هویت پیدا نشد.</target>
+                <target>هیچ ارائه دهنده احراز هویتی برای پشتیبانی از توکن احراز هویت پیدا نشد.</target>
             </trans-unit>
             <trans-unit id="10">
                 <source>No session available, it either timed out or cookies are not enabled.</source>

Resources/translations/security.gl.xlf

@@ -70,6 +70,14 @@
                 <source>Invalid or expired login link.</source>
                 <target>Ligazón de inicio de sesión non válida ou caducada.</target>
             </trans-unit>
+            <trans-unit id="19">
+                <source>Too many failed login attempts, please try again in %minutes% minute.</source>
+                <target>Demasiados intentos de inicio de sesión errados, por favor, ténteo de novo en %minutes% minuto.</target>
+            </trans-unit>
+            <trans-unit id="20">
+                <source>Too many failed login attempts, please try again in %minutes% minutes.</source>
+                <target>Demasiados intentos de inicio de sesión errados, por favor, ténteo de novo en %minutes% minutos.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>