feat: show wakatime stats in percentage (resolves #3016) (#3326)

* added option to display wakatime in percentage

* updated exclusive options in wakatime

* added percent sign

* Update readme.md

Co-authored-by: Rick Staa <rick.staa@outlook.com>

* made the required changes

* Update wakatime-card.js

* Update wakatime-card.js

---------

Co-authored-by: Rick Staa <rick.staa@outlook.com>
Co-authored-by: Alexandr <qwerty541zxc@gmail.com>

api/wakatime.js

@@ -30,6 +30,7 @@ export default async (req, res) => {
     api_domain,
     border_radius,
     border_color,
+    display_format,
     disable_animations,
   } = req.query;
 
@@ -84,6 +85,7 @@ export default async (req, res) => {
         locale: locale ? locale.toLowerCase() : null,
         layout,
         langs_count,
+        display_format,
         disable_animations: parseBoolean(disable_animations),
       }),
     );