cargo build --release alone doesn't produce a working standalone binary in
Tauri v2 — embedding the frontend vs. hitting devUrl at runtime is gated by
the tauri/custom-protocol Cargo feature, not the debug/release profile.
The scaffold never declared it, so even release builds tried to connect to
localhost:1420. Added the standard default-on custom-protocol feature
(cargo tauri dev strips it via --no-default-features for dev builds); a
plain `cargo build --release --locked` in src/ now produces a real
standalone binary with no dev-server dependency.
Also fixes vite.config.js's file-watch ignore pattern, left stale by the
src-tauri -> src rename: a bare "**/src/**" glob would have also matched
frontend/src itself, so it's now an absolute path scoped to the Rust
project dir specifically.
Ports every remaining view (Keybinds, the last one — dual Flat/MultiLayout
schema detection, per-action dedicated fields with a raw-JSON fallback for
anything not modeled) and removes the now-fully-dead GTK4 crate (root
Cargo.toml + src/), leaving src-tauri/ as the single Rust binary crate.
Also folds in the UX pass done alongside the migration: responsive
multi-column layout instead of a single centered column, chip/dropdown
pickers replacing free-typed fields (Wi-Fi networks, Bar style, keyboard
layout, tag lists), consistent pill-switch toggles and boxed-list card
styling across every page, and a sidebar scroll-chaining fix.