doc and style: formatted the whole codebase to pep8 plus added documentation where necessary

app/Utility/show_notification.py

@@ -1,22 +1,29 @@
-from kivymd.uix.snackbar import MDSnackbar,MDSnackbarText,MDSnackbarSupportingText
+from kivymd.uix.snackbar import MDSnackbar, MDSnackbarText, MDSnackbarSupportingText
 from kivy.clock import Clock
 
-def show_notification(title,details):
+
+def show_notification(title, details):
+    """helper function to display notifications
+
+    Args:
+        title (str): the title of your message
+        details (str): the details of your message
+    """
+
     def _show(dt):
         MDSnackbar(
             MDSnackbarText(
                 text=title,
+                adaptive_height=True,
             ),
             MDSnackbarSupportingText(
-                text=details,
-                shorten=False,
-                max_lines=0,
-                adaptive_height=True
+                text=details, shorten=False, max_lines=0, adaptive_height=True
             ),
             duration=5,
             y="10dp",
-            pos_hint={"bottom": 1,"right":.99},
+            pos_hint={"bottom": 1, "right": 0.99},
             padding=[0, 0, "8dp", "8dp"],
-            size_hint_x=.4
+            size_hint_x=0.4,
         ).open()
-    Clock.schedule_once(_show,1)
+
+    Clock.schedule_once(_show, 1)