[request] Add support IME inline inputs in code editor component

[yu-tang]

ZBS does not support an IME inline inputs (IME composition window opens at the cursor position for inplace edit) in code editor component. This causes inconveniences with CJK strings inputs.
I'd prefer an inline IME as default like SciTE does.
If it's difficult to ZBS for some reasons, please provide us to choice the option for IME interaction with config.

https://www.scintilla.org/ScintillaDoc.html#SCI_SETIMEINTERACTION