Checklist: when an item is toggled, the app scrolls to where the cursor is

Unlike on other devices, when a checklist item is toggled, the app scrolls to where the cursor is.

### Expected
To keep the app exactly view exactly where I'm working on (toggling on/off a certain checklist item). This is the behavior on iOS, web, and MacOS.

### Observed
If you

### Reproduced
1. Create a checklist with more items than your screen can visualize
2. Keep the cursor on one of the items that are outside your viewport
3. Go back to the top of the list
4. Toggle on/off one of the first items

https://user-images.githubusercontent.com/1136160/107046940-fefa1880-67a5-11eb-9936-6adb5d704e49.mp4

User info:

Device Make: Google
Device Model: Google Pixel 3a (sargo)
Android Version: 11.0.0
Simplenote Version: Simplenote 2.16-rc-2

Also reproduced on my Moto E6 with Simplenote 2.15.

Report: 3708476-zen

The issue names no file or test, so first reproduce the checklist scrolling behavior on Android using the listed steps and device context. Trace the checklist toggle and scrolling behavior, then verify that toggling an item keeps the viewport at the item being edited as on iOS, web, and macOS.

Written by the indexing model from the issue text.