docs(router/comparison): fix broken tanstack.com/discord link

[sanjibani]

Replaces https://tanstack.com/discord (404) with https://discord.gg/tanstack (200) — the TanStack Discord invite moved from the marketing site to a direct discord.gg invite.

Summary by CodeRabbit

Documentation

• Updated the Discord community link in router comparison documentation to ensure users can access the correct community server.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: e14516e9-a8a8-428a-b984-bca311878d19

📥 Commits

Reviewing files that changed from the base of the PR and between 279a849 and 3f4a1a2.

📒 Files selected for processing (1)

• docs/router/comparison.md

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📝 Walkthrough

Walkthrough

Updates a single hyperlink in docs/router/comparison.md, changing the TanStack Discord URL in the Solid section from https://tanstack.com/discord to https://discord.gg/tanstack.

Changes

Discord URL Fix in Router Comparison Docs

Layer / File(s)	Summary
Discord link URL fix docs/router/comparison.md	Updates the Discord invite hyperlink in the Solid "no comparison table yet" message to use the new https://discord.gg/tanstack URL.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~1 minutes

Suggested labels

documentation

Poem

A link had gone astray one day,
The Discord path had lost its way.
One tiny hop, one URL swap,
The rabbit fixed it — hip, hip, hooray! 🐇✨
Now community clicks will find their home,
No more lost souls left to roam!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: fixing a broken TanStack Discord link in the router comparison documentation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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