Suggestion: Support IME reconversion in subtitle text box

[hisui3393]

I have one more usability suggestion regarding text input.

In the subtitle text box, IME reconversion (re-editing already confirmed text) does not seem to work.

For example, after entering and confirming Japanese text, selecting it and pressing the reconversion key does not trigger IME reconversion, while it works normally in other applications like Notepad.

This makes it a bit difficult to correct previously entered text efficiently.

If possible, it would be helpful if the text box could support standard IME reconversion behavior.

This may particularly affect users working with Japanese or other IME-based input.

[niksedk]

I just use controls from https://github.com/avaloniaui/avalonia

The text box with coloring support is from https://github.com/AvaloniaUI/AvaloniaEdit

(this setting uses the Avalonia Edit text box, turning the setting off uses the normal text box from avalonia without colors)

So, create an issue in one of those, depending on where the problems is located...

[hisui3393]

Thanks for the clarification.

I tested the setting "Color tags (HTML/ASSA) in subtitle text box", but enabling/disabling it does not appear to change the behavior of the text box.

Additionally, I noticed another issue:

・Pressing Ctrl+Z inside the subtitle text box does not perform undo
・Instead, it activates the first row in the subtitle grid

This suggests that standard text editing behavior is not being handled inside the text box, and global shortcuts may be overriding it.

Combined with the IME reconversion issue, this may indicate that the text box control is not fully handling standard input behaviors.