Some UI fixes

[Qrox]

Summary

None

Purpose of change

1. Fix mouse-selected line of uilist not updated in map editing menus;
2. FIx mouse clicks in uilist selecting the wrong line due to uncleared drawn rectangle values;
3. Do not move cursor in string input popup when IME preview is active on tiles;
4. Place curses window cursor at the shown cursor location during text input (for IME preview to display at the correct location, and might also help screen readers).

Describe the solution

1. Update selected line index on mouse selection;
2. Clear drawn rectangle values before redraw;
3. Ignore directional keys when IME preview is active;
4. Store the cursor location and move the curses window cursor to the stored location before final refreshing.

Testing

Tested on tiles and curses and all fixes worked as intended.