[Feature] Implement Auto Backup Functionality

[sakethpathike]

Is your feature request related to a problem? Please describe. Yes. Kizuryuu-nosuuke on Discord encountered a bug that made the UI unresponsive, and even after forcing the app to stop, it didn’t resolve. Kizuryuu-nosuuke had to clear app data altogether, which caused the loss of data.

Describe the solution you'd like An automatic backup feature to prevent data loss in case of unexpected bugs or crashes.