add: css and button to home page

src/picture.py

@@ -25,6 +25,9 @@ class Picture():
             self._albums_name.append("general")
         self._is_reperoried: bool = is_repertoried
 
+    def get_page(self):
+        return self._page
+
     def get_albums_name(self):
         return self._albums_name