feat: Upgrade to Fyne 2.4.0

[adamantike]

Upgrade Fyne to v2.4.0

Tasks:

• From @dweymouth investigation:

  • [x] Fix truncation of the last character on some hyperlinks due to a magic number in customhyperlink.go.
  • [ ] Override List FocusGained, to reject the focus (probably by calling FocusNext) and allow the rows themselves to continue to handle focus and selection (needed because Fyne lists are still single-select).
  • [ ] Override GridWrap focus handling, since grid view items shouldn't be focusable (or if they are, we will want the GridViewItems themselves to handle it).
  • [ ] Investigate CPU consumption increase on MacOS, on app launch.

• Also, fyne fork must be rebased to 2.4.0, to include:

  • [ ] Reduced idle CPU usage (commit https://github.com/dweymouth/fyne/commit/99769cf441c7ba118e199115b0f4a3e36416361d), unless until https://github.com/fyne-io/fyne/pull/4173 gets addressed.
  • [ ] Restarting run loop on Mac (commit https://github.com/dweymouth/fyne/commit/ca61c153b2a5bb7d226b8f072b1fbd27bc17371a)
  • [ ] Disabling watch on Preferences (commit https://github.com/dweymouth/fyne/commit/04bb93bb1dd2d075d6d3327dcdef690f5fe4a85d): Not sure about this one.

Closes #245

[dweymouth]

Thanks for working on this! If you want, this can be worked on in multiple rounds of PRs to be merged to a new branch until everything is ready to land on main. (Also, is it time to move supersonic to its own Github org?)

[dweymouth]

I am picking this up now that the CPU issue has been solved since I want to have the next release be on Fyne 2.4. It's also not necessarily easy and having all the knowledge I have of what Fyne behaviors I've worked around is really helpful

[adamantike]

Completely agree. Thanks for taking this over!!