Alpha 3 roadmap

[MewPurPur]

Alpha 3 will start being prepared right after Godot 4.2.2 releases, as 4.2.2 includes several SVG rendering bugfixes I really want in. (If I knew how long 4.2.2 would take I would've already published it)

Before that, the only things that will be merged are bugfixes and polish. Currently considering the following issues (the list will be updated if new things appear)

• Improve working with bezier control handles #395
• Crash when deleting a path command that's currently being added #484
• Grabbing an opacity slider while moving the mouse very quickly triggers tag dragging. #473
• Creating a tag path from the viewport requires two undo presses to be undone. #483
• Incorrectly parsed SVG path #494
• Esc on all LineEdits results in the field's text remaining changed despite not registering #513
• Color edit popups without a starting color #545
• Implement an optional alpha slider in the color picker #575