Description of problem:

Theme buttons (Light, Dark), French translations are present, but not translated

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

 # Start any RHDH instance with i18n enabled
 # Change language in settings to any language other than English
 # Go to settings and check the theme buttons after selecting the French language

Actual results:

Theme buttons are in English

Expected results:

Theme buttons should be translated for the available languages (French)

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

RHDH 1.9

Additional info (Such as Logs, Screenshots, etc):