Fix Glass path isolation and omnibox URL navigation

[Yabuku-xD]

Fixes #51 and #49.

Fix: Glass path isolation (closes #51)

Glass was reading and writing user data under ~/Library/Application Support/Zed (and platform equivalents), colliding with Zed stable's paths. This caused Glass's WorkspaceDb migration at step 36 (ALTER TABLE workspaces ADD COLUMN active_mode TEXT) to be written into Zed's SQLite file, which Zed stable then rejected because its own step 36 is ALTER TABLE remote_connections ADD COLUMN remote_env TEXT.

All path functions in crates/paths/src/paths.rs now use Glass-namespaced directories on every platform:

Platform	Data dir	Config dir	Logs	Cache
macOS	~/Library/Application Support/Glass	~/.config/glass	~/Library/Logs/Glass	~/Library/Caches/Glass
Linux/FreeBSD	$XDG_DATA_HOME/glass	$XDG_CONFIG_HOME/glass	same	$XDG_CACHE_HOME/glass
Windows	%LOCALAPPDATA%\Glass	%APPDATA%\Glass	same	%LOCALAPPDATA%\Glass

Log files renamed Glass.log / Glass.log.old.

Note for existing Glass users: Data previously stored under Application Support/Zed is not automatically migrated. A migration can be added in a follow-up if needed.

Fix: Omnibox URL navigation (closes #49)

Typing youtube.com/t3dotgg into the omnibox navigated to a Google search instead of the URL.

Root cause: build_suggestions() always pushed SearchQuery at index 0 and set selected_index = 0, so pressing Enter ran the search even when looks_like_url() correctly identified the input as a URL.

Fix: when looks_like_url() returns true, RawUrl is now inserted first (index 0 — the default selection on Enter). SearchQuery remains as the second option via arrow-down. Plain text queries are unchanged.

Added tests verifying the suggestion ordering for URL-like and plain-text inputs.

Release Notes:

• Fixed Glass writing its database and user data into Zed's application support directory, which was corrupting Zed stable's workspace database
• Fixed typing a bare URL (e.g. youtube.com/path) in the browser omnibox navigating to a search result instead of the URL