Add max height to language switch dropdown

[michaelklopf]

We would like to add the functionality to set the max height of the dropdown. Because when you have a lot of languages you can't scroll through the list anymore

It currently looks like this

and like this with the PR

[what-the-diff]

PR Summary

• Introduction of $maxHeight variable
  A new variable called $maxHeight is introduced in the language-switch.blade.php file. This plays a key role in controlling the maximum height property of certain elements in our application.

• Usage of :max-height attribute
  The newly introduced $maxHeight variable is utilized as a :max-height attribute in the switch.blade.php file. This allows us better control over the visual aspects as it defines the maximum height of an element.

• Added functionality in LanguageSwitch.php
  Included a new property, protected string $maxHeight = 'max-content';, and a new function public function maxHeight(string $height): static to the LanguageSwitch.php file. This further extends the customization capabilities of our language switch feature, enabling it to adjust to different sizes based on input from the $maxHeight variable.

[bezhanSalleh]

Thanks