fix(filepicker_ls): use case insensitive matching for file exts (#585)

This reverts commit 39f4f2870b , because functions (seemingly) don't run after the event loop closes, so the unload function is never actually run.

backend/src/plugin.py

@@ -118,11 +118,11 @@ class PluginWrapper:
 
         if "stop" in data:
             self.log.info("Calling Loader unload function.")
+            await self._unload()
             get_event_loop().stop()
             while get_event_loop().is_running():
                 await sleep(0)
             get_event_loop().close()
-            await self._unload()
             raise Exception("Closing message listener")
 
         # TODO there is definitely a better way to type this

backend/src/utilities.py

@@ -238,7 +238,7 @@ class Utilities:
                 elif include_files:
                     # Handle requested extensions if present
                     if len(include_ext) == 0 or 'all_files' in include_ext \
-                        or splitext(file.name)[1].lstrip('.') in include_ext:
+                        or splitext(file.name)[1].lstrip('.').upper() in (ext.upper() for ext in include_ext):
                         if (is_hidden and include_hidden) or not is_hidden:
                             files.append({"file": file, "filest": filest, "is_dir": False})
         # Filter logic