Bug: the change should not occur at mobile device

Lexical version: 0.91

## Steps To Reproduce
At mobile device
1. the cursor is in the end of the word/line
2. click in the end of a word/line
3. click button to update font style to bold
4. click in the end of a word/line
5. input text

Link to code example:

## The current behavior
the text is not bold
## The expected behavior
the text is bold

The report does not name a source file, test, or reproducible code example. Start by reproducing the mobile editing sequence against Lexical 0.9.1, then locate the code handling cursor placement and bold formatting. Done means the entered text remains bold after clicking at the end of the word or line.

Written by the indexing model from the issue text.