feat(bindings): open strata as the file manager

SUPER+CTRL+ALT+F launches or focuses strata instead of Nautilus, and
SUPER+ALT+SHIFT+F opens strata in the terminal's cwd in place of the
flea --default block.

bindings.lua

@@ -241,7 +241,7 @@ o.bind("SUPER + CTRL + ALT + J", "Terminals", "omarchy-cycle-terminal")
 o.bind("SUPER + CTRL + ALT + K", "Browsers", "omarchy-cycle-browser")
 o.bind("SUPER + CTRL + ALT + G", "Ghostty", "omarchy-cycle ghostty")
 o.bind("SUPER + CTRL + ALT + O", "Obsidian", "omarchy-cycle obsidian")
-o.bind("SUPER + CTRL + ALT + F", "File manager", "omarchy-launch-or-focus nautilus \"gtk-launch org.gnome.Nautilus\"")
+o.bind("SUPER + CTRL + ALT + F", "File manager", "omarchy-launch-or-focus io.github.lgse.Strata \"gtk-launch io.github.lgse.Strata\"")
 -- Fastmail, Beeper, Google Home and LM Studio each live on their own scratch
 -- workspace (window rules in hypr/hyprland.lua); the toggle reveals it (on
 -- eDP-1 for Fastmail and Beeper, else the focused monitor) and starts the app
@@ -311,23 +311,19 @@ hl.unbind("SUPER + SPACE") -- was: pseudo window
 -- ALT + TAB below takes that job; SUPER + SHIFT + RETURN is unbound
 -- (Window management, above).
 --
--- flea --default: begin. Written by `flea --default`; `flea --default off` removes the block whole.
-hl.unbind("SUPER + SHIFT + F")
-o.bind("SUPER + SHIFT + F", "File manager", { launch = 'flea --gui' })
+-- strata (default file manager; installed by chezmoi's 15-tools into
+-- ~/.local/bin, which uwsm-app's environment may not have on PATH).
 hl.unbind("SUPER + ALT + SHIFT + F")
-o.bind("SUPER + ALT + SHIFT + F", "File manager (cwd)", { launch = 'flea --gui "$(omarchy-cmd-terminal-cwd)"' })
--- flea --default: end.
+o.bind("SUPER + ALT + SHIFT + F", "File manager (cwd)", "uwsm-app -- \"$HOME/.local/bin/strata\" \"$(omarchy-cmd-terminal-cwd)\"")
 
 -- flea --picker: begin. Written by `flea --picker`; `flea --picker off` removes the block whole.
 o.window("com.thisisgm.flea.picker", { tag = "+floating-window" })
 -- flea --picker: end.
 
 -- niri-style: SUPER + F maximizes (Omarchy's SUPER + ALT + F "Full width"),
--- SUPER + SHIFT + F goes true fullscreen. Kept below the flea blocks so it
--- wins over the file-manager bind `flea --default` writes onto
--- SUPER + SHIFT + F; flea stays on SUPER + ALT + SHIFT + F, Nautilus on
--- SUPER + CTRL + ALT + F.
+-- SUPER + SHIFT + F goes true fullscreen (Omarchy binds the file manager
+-- there). strata is on SUPER + ALT + SHIFT + F (cwd) and SUPER + CTRL + ALT + F.
 hl.unbind("SUPER + F") -- was: full screen
 o.bind("SUPER + F", "Maximize", hl.dsp.window.fullscreen({ mode = "maximized" }))
-hl.unbind("SUPER + SHIFT + F") -- was: file manager (flea --gui)
+hl.unbind("SUPER + SHIFT + F") -- was: file manager
 o.bind("SUPER + SHIFT + F", "Full screen", hl.dsp.window.fullscreen({ mode = "fullscreen" }))