[Enhancement] Add More Event Handlers to EditorField

[BinaryAssault]

Can the EditorField have at the very least the TextChanged event added to it?

Would be even better if ReturnCommand/ReturnCommandParameter could be included (not sure of feasibility)

Additionally would be nice to have IsSpellCheckEnabled added; maybe it is inherently there, but I have not looked

[BinaryAssault]

Added PR #432 ReturnCommand/ReturnCommandParameter requires handlers and deeper implementation so I left them out for the moment.

Using TextChanged with the EventToCommand behavior from the community toolkit, you can at least see if the new text ends in a '\n'. If so, the enter key was pressed and you can work on that. Not ideal - but functional.

[enisn]

I plan to release v2.6 with .NET 8, so I want to release PR #432, I'll take your commits with cherry-pick to rel-2.5 branch and release another patch version for v2.5