AtomicDiceRoller: Manifest fixes

atomicdiceroller/application.fam

@@ -1,6 +1,6 @@
 App(
     appid="flipper_atomicdiceroller",
-    name="Atomic Dice Roller",
+    name="[J305] Atomic Dice Roller",
     apptype=FlipperAppType.EXTERNAL,
     entry_point="flipper_atomicdiceroller_app",
     cdefines=["APP_ATOMICDICEROLLER"],
@@ -9,5 +9,5 @@ App(
     ],
     stack_size=2 * 1024,
     fap_icon="atomicdiceroller.png",
-    fap_category="Tools",
+    fap_category="GPIO",
 )