Button Text in Language Tab

Description
The button text in the Language tab lacks consistent capitalization. Additionally, some of the languages are displayed in their native script/style while others are in English, leading to inconsistency in presentation.

Describe the solution you'd like

The first letter of every word in the button text should be capitalized (e.g., "Swedish" instead of "swedish") for consistency.
Language names should either be uniformly displayed in their native script/style or in English, with clear guidelines applied across the tab.

Start at the Language tab and locate the button labels and language-name definitions. Review all displayed names against one consistent capitalization and language-script convention. Done means the tab presents uniformly formatted button text and language names.

Written by the indexing model from the issue text.