[fields] Fix Android editing

[flaviendelangle]

Part of #7440

In Android, we have 2 onChange, for the 1st one we need to just store the result as is in the input.
Since the RTL PR, we were storing the clean value (without the RTL characters), which was causing shift in the edited layout on the 2nd onChange.

[mui-bot]

	Messages
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These are the results for the performance tests:

Test case	Unit	Min	Max	Median	Mean	σ
Filter 100k rows	ms	603.1	982.2	629.2	740.6	157.486
Sort 100k rows	ms	578.3	1,086.3	787	843.6	164.967
Select 100k rows	ms	195.9	285.2	242	238.24	29.487
Deselect 100k rows	ms	134.2	277.5	185.9	192.8	48.651

Generated by 🚫 dangerJS against 6397e99

[alexfauquette]

It was hard to reproduce. I don't have the bug with Gboard.

What about adding a test to catch this error?

[flaviendelangle]

Do you have an idea of how to test those Android-only behaviors ?

[alexfauquette]

I was thinking about firing an onChange with the section deleted and a second one with the typed value. But it would also require modifying the userAgent otherwise isAndroid() will not work

[flaviendelangle]

I added two tests 👍

[oliviertassinari]

@flaviendelangle Thanks for looking into it 👌.

I noticed two other things:

1. https://next.mui.com/x/react-date-pickers/date-field/#customize-the-date-format

Screen.Recording.2023-02-05.at.22.05.45.mov

2. https://next.mui.com/x/react-date-pickers/date-field/#customize-the-date-format

Screen.Recording.2023-02-05.at.22.09.16.mov

It can be reproduced on https://live.browserstack.com/dashboard#os=android&os_version=12.0&device=Samsung+Galaxy+S22&device_browser=chrome&zoom_to_fit=true&full_screen=true&url=https%3A%2F%2Fy2jlm1.csb.app%2F&speed=1&host_ports=google.com%2C80%2C0.

[flaviendelangle]

1st bug reproduced, that's not specific to Android, #7834

[flaviendelangle]

2nd bug reproduced.
This one is interesting. The Backspace logic is not handled by the onChange to it does not work on Android...
I created #7835 because it's not a trivial change.