Update application manifest and add icon.

application.fam

@@ -4,9 +4,9 @@ App(
     apptype=FlipperAppType.EXTERNAL,
     entry_point="gps_app",
     cdefines=["APP_GPS"],
-    requires=[
-        "gui",
-    ],
+    requires=["gui"],
     stack_size=1 * 1024,
-    order=20,
+    order=35,
+    fap_icon="gps_10px.png",
+    fap_category="Tools",
 )