chore: backport changes from dzgui7 branch

dzgui/api/steam.py

@@ -139,6 +139,7 @@ def get_remote_signatures(mods: list[str]) -> list[tuple[str, str, int, int]]:
     j = r.json()
     rows = j["response"]["publishedfiledetails"]
     for row in rows:
+        # NOTE: not a valid published file
         if row["result"] == 9:
             continue
         title = str(row["title"])

dzgui/views/pages/preconnect.py

@@ -284,7 +284,7 @@ class PreConnectionAssistant(Gtk.Box):
         allows_dl, running_app = prereqs.allows_downloads
         if len(prereqs.mods) > 0 and allows_dl is False:
             msg = (
-                f"The game '{running_app}' is currently running in Steam, but background downloads are not enabled.\n"
+                f"The app '{running_app}' is currently running in Steam, but background downloads are not enabled.\n"
                 "Either stop the game first, or update your global Steam settings or the game's local settings.\n"
                 "Otherwise, mods may be queued for download but never update."
             )