chore: bump version 2.4.0

[piotr-iohk]

Bump version to 2.4.0 (build 186) for release.

Description

• versionCode: 185 → 186
• versionName: 2.3.2 → 2.4.0

Preview

N/A

QA Notes

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Made with Cursor

[greptile-apps]

Greptile Summary

This PR prepares the Android 2.4.0 release. The main changes are:

• Bump the version code from 185 to 186.
• Bump the version name from 2.3.2 to 2.4.0.
• Add the 2.4.0 release notes and comparison links.
• Remove changelog fragments included in the release notes.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.
• The release version and build number are consistent.
• Every deleted changelog fragment appears in the matching release section.

Important Files Changed

Filename	Overview
app/build.gradle.kts	Bumps the shared Android version code to 186 and version name to 2.4.0.
CHANGELOG.md	Adds the 2.4.0 release notes and advances the release comparison links.

_{Reviews (1): Last reviewed commit: "chore: version 2.4.0" | Re-trigger Greptile}