Send composer analytics when sending a message

[julioromano]

Composer event are not sent to posthog when sending messages.

After investigation I've found that in MessageComposerPresenter the analyticsService.capture() call is invoked in the SetMode event handler rather than in the SendMessage event handler.

This change should result in the desired behavior.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[github-actions]

📱 Scan the QR code below to install the build (arm64 only) for this PR.

If you can't scan the QR code you can install the build via this link: https://i.diawi.com/BqEhhJ

[bmarty]

Thanks. I have checked on EA and we do the same thing.

Naming the analytics event Composer is a bit weird though, something like SendMessage should be more appropriate / more obvious, but this is out of scope of this PR.