What it does:
• Adds a fullscreen expand button to every Text Editor field — automatically, no per-doctype setup
• Opens a large modal with full toolbar access
• Works on read-only / locked fields too
• Respects the desk full-width toggle
• Supports dark theme out of the box
• Dismiss with Escape or the close button
It works across all standard ERPNext modules — HR, Issue Tracker, Notes, Manufacturing, Healthcare, you name it. If it has a Text Editor, it gets the button.
Tested on v15 and v16. Install once, works everywhere.
Happy to hear feedback or take PRs — still fairly new to open sourcing stuff so go easy on me 
