Updated jinja templates and css to better enable product alteration

utils/file_utils.py

@@ -2,7 +2,7 @@ import os
 import uuid
 import pathlib
 
-ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif'}
+ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif', 'bmp'}
 
 
 def allowed_file(filename) -> bool:
@@ -44,3 +44,5 @@ def remove_file(dir: str):
         os.remove(dir)
     except FileNotFoundError:
         pass
+    except IsADirectoryError:
+        pass