Add Compose editor + migrate core architecture to CodeEditorDelegate (breaking)

[itsvks19]

This PR adds a new editor-compose module and rewires a big part of the editor so it can run in Compose without depending on the Android View (CodeEditor).

To make that work, the core logic now goes through CodeEditorDelegate instead of the View. The old View-based editor still works, but it’s no longer the center of everything.

Also fixes a bunch of annoying interop issues along the way (gesture conflicts, IME weirdness, some leaks, etc.).

Breaking changes

Events no longer return CodeEditor.

They now return CodeEditorDelegate.

Before:

CodeEditor editor = event.getEditor();

After:

CodeEditorDelegate delegate = event.getEditor();

If you were using the View directly from events, you’ll need to update that.

Helper for migration

Added this:

@Nullable
public static CodeEditor fromDelegate(@NonNull CodeEditorDelegate delegate)

• Returns the CodeEditor if you're in View mode
• Returns null if you're using Compose

Example:

CodeEditor editor = CodeEditor.fromDelegate(delegate);
if (editor != null) {
    // old View logic
}

Compose doesn’t have a View, so passing CodeEditor around in events doesn’t make sense anymore.

CodeEditorDelegate becomes the common layer that works for both:

• View (CodeEditor)
• Compose (editor-compose)

Compose usage

val state = rememberCodeEditorState(initialText = "Hello, World!")

CodeEditor(
    state = state,
    modifier = Modifier.fillMaxSize()
)

This is a big change, but it should make future work (especially Compose stuff) much cleaner.

[itsvks19]

@Rosemoe merge when?

[Rosemoe]

I'll review this probably this weekend. It's quite a big change.

[itsvks19]

I think I need to recreate PR, as this PR is messed up.