📄 Context

This is a fix for #737. Seems like the issue was in accessing SharedPreferences from the main thread. We were not catching it earlier due to having not all StrictMode options enabled.
Added additional StrictMode checks to the sample app. Additionally saw that we still have a piece of code for removing Chuck database file. I suppose we don't need it anymore, so removed it.

📝 Changes

• Added more StrictMode checks to the sample app.
• Add dispatcher switching for doMaintanence() function to move from the main thread
• Made prefs initialisation lazy, since it was also making StrictMode not happy before
• Removed the code which tried to remove Chuck database
• Updated Gradle wrapper to 7.3.2

🚫 Breaking

No breaking changes introduced

🛠️ How to test

Just run the sample app and see that no issues found with more StrictMode options enabled.

⏱️ Next steps

Closes #737