refactor: modules structure (#11)

* wip inlined conditions

* wip extract sub-modules from the main app

* add missing params docs

* wip add views and scenes

* add build and run, move render

* completed working prototype

* complete cleanup

* assign better event names

* update docs

Author: Th3Un1q3

application.fam

@@ -2,7 +2,7 @@ App(
     appid="flipp_pomodoro",
     name="Flipp Pomodoro",
     apptype=FlipperAppType.EXTERNAL,
-    entry_point="flipp_pomodoro_main",
+    entry_point="flipp_pomodoro_app",
     requires=["gui", "notification", "dolphin"],
     stack_size=1 * 1024,
     fap_category="Productivity",