The application is stopped after some time

# Issue description

Some manufacturers (Xiaomi, Huawei, Samsung and others) are stopping background apps (like Quick Cursor) even when the user doesn't want this.

# Solution for users

Unfortunately, there is no solution for me as a developer to fix this. I don't have enough permissions to bypass their mechanisms.

The solution is to check what tricks/hacks/whitelists/locks you have to do specifically for your device in order to keep an app open for a long period of time.

Usually there are some tricks that apply to all manufacturers, but each manufacturer have different settings and it can also change on each Android version:
- **lock the app in memory** from the recents menu:
- [Example OnePlus](https://user-images.githubusercontent.com/3103859/210064971-a9b4d01a-ab4b-4a06-8bc2-836c9c3aa480.png)
- [Example Xiaomi](https://user-images.githubusercontent.com/3103859/210065000-3f50804b-aab8-4796-b5e2-7496d690e6d2.png)
- [Example Samsung Android 13](https://user-images.githubusercontent.com/3103859/210065189-0dda672b-4261-4bbf-a729-a1191e8b4854.png)
- [Other example](https://user-images.githubusercontent.com/3103859/210065245-32117001-0924-4d1a-8dae-931b3543e546.png)
- there is no solution that works on all devices, each device has a different locking mechanism
- **disable battery optimization for Quick Cursor**:
- [Example Samsung](https://user-images.githubusercontent.com/3103859/210065721-6237ff14-3147-4f72-8621-13e6289e3d12.png)
- [Example MIUI](https://user-images.githubusercontent.com/3103859/210065853-698b0f0c-8c38-498a-a93e-5b89739c478b.png)
- Each manufacturer has different ways to manage exceptions for battery optimization
- Read more tips & tricks on how to prevent your Android to stop an app at https://dontkillmyapp.com. Open website, find your device there and follow the step by step guides.

I can't maintain a list of all possible ways because each manufacturer on each Android version have a different complex way to stop a background app.

**Huge congrats to Google Pixel** and other close to AOSP devices that don't stop a background accessibility app.

The issue describes Android manufacturers stopping Quick Cursor in the background, but it names no repository file, test, or entry point to inspect. Read the issue's manufacturer-specific guidance first; no implementation change or code-defined completion condition is specified, and the stated resolution is device-specific user configuration.

Written by the indexing model from the issue text.