[IMP] odoo_theme: stop translating language names in the switcher

Before this commit, the language names were translated to display
"Français" instead of "French". This helped the user find their language
in the switcher but it was taking too much horizontal space, and that
space was not constant from one language to another.

This commit removes the translations of the language names and simply
goes with "FR", "NL", etc. which any user can identify as their
language.

task-2800937

Author: edi-odoo

conf.py

@@ -163,14 +163,14 @@
 # The language names that should be shown in the language switcher, if the config option `languages`
 # is populated. If a language is passed to `languages` but is not listed here, it will not be shown.
 languages_names = {
-    'de': 'Deutsch',
-    'en': 'English',
-    'es': 'Español',
-    'fr': 'Français',
-    'nl': 'Nederlands',
-    'pt_BR': 'Português (BR)',
-    'uk': 'українська',
-    'zh_CN': '简体中文',
+    'de': 'DE',
+    'en': 'EN',
+    'es': 'ES',
+    'fr': 'FR',
+    'nl': 'NL',
+    'pt_BR': 'PT',
+    'uk': 'UA',
+    'zh_CN': 'ZH',
 }
 
 # The specifications of redirect rules used by the redirects extension.