Crashes, possibly related to downloads or UI

### Checklist - [X] I have used the search function for [**OPEN**](https://github.com/XilinJia/Podcini/issues) issues to see if someone else has already submitted the same bug report. - [X] I have **also** used the search function for [**CLOSED**](https://github.com/XilinJia/podcini/issues?q=is%3Aissue+is%3Aclosed) issues to see if the problem is already solved and just waiting to be released. - [X] I will describe the problem with as much detail as possible. - [X] If the bug only to occurs with a certain podcast, I will include the URL of that podcast. ### App version 7.3.0 ### Where did you get the app from Other ### Android version Android 15 GrapheneOS ### Device model Pixel 7 Pro ### First occurred Today ### Steps to reproduce 1. Open app 2. Go to podcast 3. Search 4. (Maybe) download an episode from the search results 5. (Maybe) go to the episodes page of a subscription with an ongoing download ### Expected behaviour Not crash. ### Current behaviour It crashes (closes itself, shows system "... Keeps stopping" message). Initially I was reporting this for a crash tapping the download button on search results but then had further crashes just navigating. The started downloads do continue despite the crash. As an aside, tapping search while on a subscription page no longer limits search results to that podcast. Not sure if that's intended. ### Logs [full-logs (1).txt](https://github.com/user-attachments/files/18350418/full-logs.1.txt) [Error in Podcini.R e58c797db78c.txt](https://github.com/user-attachments/files/18350419/Error.in.Podcini.R.e58c797db78c.txt) [Error in Podcini.R 6e0fe875bb02.txt](https://github.com/user-attachments/files/18350420/Error.in.Podcini.R.6e0fe875bb02.txt) [full-logs.txt](https://github.com/user-attachments/files/18350422/full-logs.txt) [Podcini.R log a768b8c8d476.txt](https://github.com/user-attachments/files/18350425/Podcini.R.log.a768b8c8d476.txt)