fix: selection should be correctly set after pasting text

[nikgraf]

Fixes #658

What did you change (functionally and technically)?

Checklist (remove this list before you submit the PR)

• Are there tests for the new code? ❌ (but there were none before)
• Does the code comply to our code conventions? ✅ (incl changeset)
• Does the PR resolve the whole issue?
  • Seems like the actual textarea update in React 18 happens a bit later and therefor we need to set it after the next render

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: b43a18e2cec4dae7dc3f4e1a1e9ec7ca3159b9fa

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | -------------- | ----- | | react-mentions | Patch |

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