fix(linux): emit position event immediately when resume

[Gustl22]

Description

Position event is only triggered after an interval (here 1s), now it's triggered once immediately when start playing.

Checklist

• [x] The title of my PR starts with a Conventional Commit prefix (fix:, feat:, docs:, chore: etc).
• [x] I have read the Contributor Guide and followed the process outlined for submitting PRs.
• [ ] I have updated/added tests for ALL new/updated/fixed functionality.
• [x] I have updated/added relevant documentation and added dartdoc comments with ///, where necessary.
• [ ] I have updated/added relevant examples in example.

Breaking Change

• [ ] Yes, this is a breaking change.
• [x] No, this is not a breaking change.

Related Issues

Tests follow in #1214

[Gustl22]

@luanpotter small reminder. Thank you ;D