Long press backspace

[YuriyMorkovnik]

Description
Long press a backspace button causes a concatenation a part of deleting word. Also you can't hold a backspace to delete a part of a word because it stops you after the first symbol.

Recording

video_2021-12-05_10-26-41.mp4

Sandbox
There is just a copy of a official demo in sandbox
https://codesandbox.io/s/agitated-http-goi7b?file=/src/App.js

Steps
To reproduce the behavior:

1. Write a text
2. Hold a backspace button
3. See error

Expectation
Smooth deleting of symbols while you’re holding a backspace button

Environment

• Slate Version: 0.71
• Operating System: Android 10
• Browser: Chrome

[AkromDev]

I had the same issue on galaxy s8 but did not face the issue on S21+ and galaxy A20. Maybe It seems that editor has some performance issues on slower/older phones and require more CPU/RAM power. I am not getting this issue anymore on latest examples. The backward delete seems to have been improved as well. My assumption is that #4706 has improved editor performance for android and some issues resulting from poor performance are now fixed.

[AkromDev]

I noticed it is still happening in slate@0.71.0 with texts close to the images. But it improved compared to slate@0.71.0. Interesting thing is that it does not happen in their website but it happens when I clone the slate repo and run examples locally.

[TrySpace]

Seems related to this: #4715

[YuriyMorkovnik]

Updated slate to v0.80. Seems this issue is fixed. Thanks all!