Degraded performance when scrolling after leaving app open for weeks.

### Describe the bug I'm using a laptop which I seldom reboot, but do put to sleep every day. I also leave Tuba running in a separate workspace. Often, I refresh the timeline and notifications after waking the laptop from sleep, since this is not done automatically. Recently, I've noticed degraded performance when scrolling in the timeline. Restarting Tuba restored performance. ### Steps To Reproduce 1. Leave Tuba on for an extended period (several weeks) 2. Scroll the timeline. ### Logs and/or Screenshots ``` <paste your logs here> ``` ### Instance Backend Mastodon ### Operating System Nobara Linux 43 (Workstation Edition) x86_64 ### Package Flatpak ### Troubleshooting information os: GNOME 49 (Flatpak runtime) prefix: /app flatpak: true version: 0.10.3 (production) gtk: 4.20.3 (4.20.1) libadwaita: 1.8.2 (1.8.0) libsoup: 3.6.5 (3.6.5) libgtksourceview: 5.18.0 (5.18.0) libspelling: true Clapper: 0.8.0 (0.8.0) GStreamer: GStreamer 1.26.8 (1.6.26.0) GExiv2: 1600 (0.16.0) ### Additional Context _No response_