SaraSuite launcher: use {AppDir} and {Python} like SaraFem's

Co-Authored-By: Claude Opus 5.5 <[email protected]>

Packaging/SaraSuite/Templates/Launch.sh

@@ -1,6 +1,4 @@
-#!/bin/bash
+#!/bin/sh
-# Desktop-entry launcher: resolves the venv relative to this script rather
+# Written by SaraSuite. Runs from the app folder so Flet finds assets/.
-# than the caller's cwd, since .desktop Exec= lines are invoked with no
+cd "{AppDir}" || exit 1
-# guaranteed working directory.
+exec "{Python}" Main.py "$@"
-cd "$(dirname "$(readlink -f "$0")")/.." || exit 1
-exec .venv/bin/python Main.py "$@"