Position the cursor using a screen reader and braille routing keys

### Windows Terminal version

v1.23.10732.0

### Windows build number

10.0.26100.3476

### Other Software

vim inside wsl, bash, all over the place

### Steps to reproduce

Hi there,

I'm unable to move the cursor using braille routing keys e.g. on the line of the shell prompt or in vim on wsl. In regular text areas one can click the routing key above a character which then moves the cursor to the corresponding position. In wt it looks like every key just sends a left arrow, no matter how far on the right it is. in conhost nothing happens at all.
When using showkey inside a wsl distro, it also reports an [^D key code.

Using cygwin and its mintty it works, but showkey doesn't show any key then.

I tested using latest JAWS and NVDA.

Maybe there is just a setting I didn't come across so far?

Best
Martin

### Expected Behavior

The cursor should move horizontally on the current line to the key I pressed

### Actual Behavior

It just moves one character to the left until it hits the line start and rings the bell

No source file or test is identified. Start by reproducing the braille routing-key behavior with JAWS or NVDA in Windows Terminal using bash or vim inside WSL, then compare it with conhost and mintty. Done means routing keys position the cursor horizontally at the selected character instead of repeatedly sending left-arrow behavior.

Written by the indexing model from the issue text.