Update tagstudio/src/qt/widgets/preview_panel.py

Co-authored-by: VasigaranAndAngel <72515046+VasigaranAndAngel@users.noreply.github.com>

Author: python357-1

tagstudio/src/qt/widgets/preview_panel.py

@@ -310,9 +310,9 @@ def fill_libs_widget(self, layout: QVBoxLayout):
         for access_time in self.driver.cache.library_history:
             lib_dir = self.driver.cache.library_history[access_time]
             cut_val = lib_dir
-            if len(str(lib_dir)) > 45:
+            if len(lib_dir) > 45:
                 cut_val = f"{lib_dir[0:10]} ... {lib_dir[-10:]}"
-            lib_items[str(access_time)] = (str(lib_dir), cut_val)
+            lib_items[access_time] = (lib_dir, cut_val)
 
         new_keys = set(lib_items.keys())