fix: add intent-filter for jxl files

[naveensingh]

Type of change(s)

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

What changed and why

Added intent-filter for JXL files

Tests performed

• Opening JXL files on Android 13 using Fossify File Manager and Material Files

Closes the following issue(s)

• Closes Fossify missing from "open with" menu of jpeg xl (jxl) files #568

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.