Reflect default browser changes in bindings and webapps (#871)

* Abstract default browser to omarchy-browser (a wrapper)

* Fix the omarchy-browser command as it used to loop. Extract info from the browser .desktop files.

* Clean up and fix bugs

* Cleanup unused change

* Fix indentation

* Separate out omarchy-browser from omarchy-webapp so that we don't break webapps for browsers other than Chromium or Google Chrome.

* Fix incorrect function call

* Add a migration script

* Migration script fixes

* Simplify the browser and webapp commands. Rename commands to align with launch terminology.

* Add support for Microsoft Edge, Opera and Vivaldi

* Fix errors

* Remove --name and --class -- They're not respected when --app is defined

* We don't ship with Chrome

* Simplify launchers

* Use launch commands everywhere

---------

Co-authored-by: Ryan Hughes <ryan@heyoodle.com>

bin/omarchy-launch-webapp

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+browser=$(xdg-settings get default-web-browser)
+
+case $browser in
+google-chrome* | brave-browser* | microsoft-edge* | opera* | vivaldi*) ;;
+*) browser="chromium.desktop" ;;
+esac
+
+exec setsid uwsm app -- $(sed -n 's/^Exec=\([^ ]*\).*/\1/p' {~/.local,/usr}/share/applications/$browser 2>/dev/null | head -1) --app="$1" "${@:2}"