Remove copy dataset mako

[guerler]

This PR removes the copy dataset controller endpoint and mako. User can copy datasets between histories using the history multi view. Additionally the legacy interface does not scale well for medium to large histories.

How to test the changes?

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• I've included appropriate automated tests.
• This is a refactoring of components with existing test coverage.
• Instructions for manual testing are as follows:
  1. [add testing steps and prerequisites here if you didn't write automated tests covering all your changes]

License

• I agree to license these and all my past contributions to the core galaxy codebase under the MIT license.

[mvdbeek]

It is still by far the fastest way to copy multiple datasets. Admittedly I didn't even know it was still reachable in the UI (the cog wheel options are really not that intuitive). Can we merge this after the 24.0 branch and then make sure there's some kind of replacement (maybe through the side-by-side history view) ?

[guerler]

@mvdbeek we do have a replacement for this feature now, users can select multiple files in the history and drag/drop them into another history using the multi history view interface thx to @ahmedhamidawan.

[wm75]

Not only is it still the fastest way as @mvdbeek points out, but I'm also still using this a lot in daily work.
Mostly out of old habits, but, importantly, also on touch screen devices. Last time I checked drag and drop in the multi-history view still wasn't working on mobile and it's that old alternative that saved me then.

I'm not opposed to removing the mako page, but then we need to make sure we have 100% of its functionality available elsewhere.