fix(runtime): make startup and GTK installation explicit

run.sh

@@ -11,16 +11,4 @@ if ! test -x ./strans; then
 	echo "run.sh: ./strans is not executable; run make first" >&2
 	exit 1
 fi
-if ! command -v pkill >/dev/null 2>&1; then
-	echo "run.sh: pkill is required" >&2
-	exit 1
-fi
-
-uid=$(id -u) || exit 1
-pkill -TERM -u "$uid" -x strans 2>/dev/null || :
-sleep 0.1
-pkill -KILL -u "$uid" -x strans 2>/dev/null || :
-
-./strans map </dev/null &
-strans_pid=$!
-echo "run.sh: started strans $strans_pid"
+exec ./strans map