Catches IndexOutOfBoundsException occurring on edge cases

[antonis]

Fixes wordpress-mobile/WordPress-Android#20481

Related PRs:

• [Mobile] Fixes Aztec IndexOutOfBoundsException WordPress/gutenberg#60107 ([Mobile] Fixes Aztec IndexOutOfBoundsException WordPress/gutenberg#60115)
• Fixes Aztec IndexOutOfBoundsException gutenberg-mobile#6765
• Fixes Aztec IndexOutOfBoundsException WordPress-Android#20518

Description

This PR adds exception handling for an IndexOutOfBoundsException thrown from the SpannableStringBuilder when the requested character position >= length on rare occasions.

Test

I did not find a way to reproduce the issue. Thus I suggest a sanity check like the following:

1. Open the editor
2. Apply some style
3. Place the cursor inside the style span
4. Accept a keyboard suggestion
5. Verify that no crash occurs and that the style is applied after the text change

Screen_recording_20240321_132332.mp4

Make sure strings will be translated:

• If there are new strings that have to be translated, I have added them to the client's strings.xml as a part of the integration PR.

[geriux]

LGTM! I've tested different test cases and the editor works as expected 🚀

It makes sense to go with this approach.