Refactor animate.js

What does this MR do?

• Deletes animate.js
• Replace the single occurrence of animate.js usage in labels_select.js with a more concise animation script

Are there points in the code the reviewer needs to double check?

Need to check if the animation changes are okay (Instead of one label animating after another, I have changed it so that they all animate at once)

Why was this MR needed?

Reduce unnecessary code (1.41kb animate.js => 0.1kb increase in labels_select.js)

Screenshots (if relevant)

Before:

After:

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• Tests
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if you do - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #22338 (closed)