Remove Sentry from webapp

[timroes]

We currently rely mostly on datadog for any insights and error tracking. We can remove our Sentry integration from the code. This should likely be done after #21456 is merged, so we're not running into too many conflicts around the config properties.

cc @josephkmh

[mfsiega-airbyte]

Refining notes:

• We need to clean up bits of config
• Also remove the actual code from the webapp
• 🪟 🔧 Refactor webapp configuration provider #21456 is merged so this is unblocked