web: fix 'occured' -> 'occurred' typos in 3 files

[SAY-5]

Fix 4 instances of `occured` → `occurred` across 3 web package files.

File	Kind
`web/packages/teleport/src/lib/util/eventTarget.ts`	JSDoc on `isOutOfTarget`
`web/packages/teleport/src/SessionRecordings/view/SshPlayer.tsx`	Inline comment
`web/packages/shared/libs/tdp/codec.test.ts`	Test string round-tripped through encoder (both encode site and expect matched)

String/comment-only change. Test stays green because both sides of the round-trip were updated.

[github-actions]

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[SAY-5]

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[SAY-5]

recheck

[SAY-5]

Closing — typo-only PR. Multiple maintainers across the OSS ecosystem have flagged my recent typo-sweep PRs as AI-generated spam (notably hashicorp/nomad#27855, hashicorp/hcl#794, argo-cd reviewers). I should have caught this pattern sooner. Apologies for the noise.