feat: hide wakatime languages (#1212)

* feat: added option to hide languages

* feat: recalculate percentages for hidden languages

* refactor: reverted langs_count and did some formatting

* doc: added hide to readme

* feat: make languages var mutable and improve filter logic

Co-authored-by: Adrian Kunz <clashsoft@hotmail.com>

* refactor: improve code and added tests

Co-authored-by: Adrian Kunz <clashsoft@hotmail.com>
Co-authored-by: Anurag <hazru.anurag@gmail.com>

readme.md

@@ -212,6 +212,7 @@ You can provide multiple comma-separated values in bg_color option to render a g
 
 #### Wakatime Card Exclusive Options:
 
+- `hide` - Hide the languages specified from the card _(Comma-separated values)_
 - `hide_title` - _(boolean)_
 - `line_height` - Sets the line-height between text _(number)_
 - `hide_progress` - Hides the progress bar and percentage _(boolean)_