Fix data action kbin -> mbin rename

[melroy89]

• I renamed kbin_controller.js to mbin_controller.js, however then you apparently ALSO need to update the data-controller as well with this name. So Stimulus would load the controller.
• Then I also did the rename on the data-action to mbin# (which is required after you renamed the data-controller).
• In the swagger template (by NelmioApiDocBundle), we don't even use this navigation menu. This should be removed, because this is dead-code there.
  • While I was at here, I also improved the CSS in the Swagger template, so the logo actually is better displayed now within the SwaggerUI template.
• Also update kbin_lang to mbin_lang while I found it anyways how it works now.
• ALso rename kbin-container to mbin-container, while I'm here now.

Regression of: #1256