fix(regression): for adding files in the files & media panel.

src/gui_2.py

@@ -3521,6 +3521,7 @@ def render_files_and_media(app: App) -> None:
   imgui.dummy(imgui.ImVec2(0, 5))
   if imgui.button("Add Files to Inventory"):
    r = hide_tk_root(); paths = filedialog.askopenfilenames(); r.destroy()
+   from src import models
    for p in paths:
     if p not in [f.path if hasattr(f, "path") else f for f in app.files]: app.files.append(models.FileItem(path=p))
   imgui.same_line()