[24.2] Only allow moving activity bar icons when editing the bar.

[jmchilton]

Add small visual indicator that they can be moved.

There was a broad consensus at the dev team meeting that this was a good change but the impetus was release testing the new workflow activity bar and being confused by this behavior.

How to test the changes?

(Select all options that apply)

• Instructions for manual testing are as follows:
  1. Try to move the activity bar icons without being in the settings, notice they cannot move. Click settings and see they can move now.

License

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

[ahmedhamidawan]

It works great and looks nice too! Thanks!

Screencast