Add support for polish language

src/manjaro_hello.py

@@ -57,7 +57,7 @@ class ManjaroHello():
         self.builder.get_object("aboutdialog").set_logo(logo)
 
         # Init translation
-        self.locales = ("en", "fr") # supported locales
+        self.locales = ("en", "fr", "pl") # supported locales
         self.default_locale = "en"
         self.sys_locale = locale.getdefaultlocale()[0]
         self.default_texts = {}

ui/manjaro-hello.glade

@@ -587,6 +587,7 @@ We, the Manjaro Developers, hope that you will enjoy using Manjaro as much as we
             <items>
               <item id="en">English (United States)</item>
               <item id="fr">Français (France)</item>
+              <item id="pl" translatable="yes">Polski (Polska)</item>
             </items>
           </object>
           <packing>