A setting to automatically trigger Ghosttext on every clicked text field

Manually pressing a hotkey adds friction and I may want to edit a textfield in Nvim after writing a bunch of words down and realizing I want to use vim motions.

Start by locating the existing hotkey-trigger path and the settings entry point for GhostText. Determine how clicked text fields are detected and how Nvim is launched, then define done as an opt-in setting that triggers GhostText for every clicked text field without requiring the hotkey; no tests or files are named in the issue.

Written by the indexing model from the issue text.