Revert "feat(backend): Move tracing to only spans (#179)"

[cleptric]

This reverts commit beccc8f10e645154a09193c88442e054dfd2409c.

[sentry-io[bot]]

🔍 Existing Issues For Review

Your pull request is modifying functions with the following pre-existing issues:

📄 File: src/Http/Client.php

Function	Unhandled Issue
App\Http\Client::_sendRequest	Error: Cannot access protected property Sentry\Tracing\Span::$spanId /src/Http/Client.php in App\Http... Event Count: 16

---

_{Did you find this useful? React with a 👍 or 👎}

[codecov[bot]]

Bundle Report

Bundle size has no change :white_check_mark: