feat(move onevent): move onEvent from CourierProvider to Inbox so we …

[rileylnapier]

…can access hooks better

having the function on CourierProvider made it hard to use things like useInbox

Description

[Pull Request Description Here]

Type of change

• [ ] Bug fix (non-breaking change that fixes an issue)
• [x] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Related issues

Fix [#1]()

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (main@9b2b956). Click here to learn what that means. Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #459 +/- ## ======================================= Coverage ? 40.92% ======================================= Files ? 67 Lines ? 1036 Branches ? 307 ======================================= Hits ? 424 Misses ? 612 Partials ? 0 ```

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