* fix: handle terminal keyboard input on Android with desktop UA
- Detect Android via navigator.userAgentData.platform when UA is
spoofed by Chrome's "Desktop site" mode, so the <input> overlay
(useTextInput) is used instead of <textarea>.
- Handle Ctrl+letter and Alt+letter combos in the hidden input
overlay's keydown handler, so terminal control sequences (^C, ^D,
^S, M-x, etc.) work through the touch input path.
- Skip global keyboard shortcuts (sidebar toggle, etc.) when focus
is inside the terminal viewport, preventing shortcut steal.
* fix: preserve terminal keyboard shortcuts
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Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
