fix: properly highlight search results with accents and diacritics

[jguegel]

Type of change(s)

• Bug fix
• Feature / enhancement
• Infrastructure / tooling (CI, build, deps, tests)
• Documentation

What changed and why

• Fixed highlighting for Search with accents and diacritics

Tests performed

• searched with letters without accents and diacritics -> result highlights contain accents and diacritics

Closes the following issue(s)

• Closes [Bug] Contacts + Dialer words with "á" arent highlighted #12

Checklist

• I read the contribution guidelines.
• I manually tested my changes on device/emulator (if applicable).
• I updated the "Unreleased" section in CHANGELOG.md (if applicable).
• I have self-reviewed my pull request (no typos, formatting errors, etc.).
• All checks are passing.

[jguegel]

@naveensingh if you want i can have a look in the phone app too (problem exists there too, see also comment in #12) , i couldn't find an issue (bugticket). should i just create a ticket for it or would it be fine without?

[naveensingh]

Sure

[jguegel]

same same but different FossifyOrg/Phone#661