KB article: how to recover from corrupt keeper snapshots

[Blargian]

Summary

Closes #2829. Closes #3371
Adds a KB article on how to recover from corrupt keeper snapshots.

Checklist

• Delete items not relevant to your PR
• URL changes should add a redirect to the old URL via https://github.com/ClickHouse/clickhouse-docs/blob/main/docusaurus.config.js
• If adding a new integration page, also add an entry to the integrations list here: https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/integrations/index.mdx

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Project	Deployment	Actions	Updated (UTC)
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[Blargian]

Cross link from https://clickhouse.com/docs/engines/table-engines/mergetree-family/replication#recovery-after-complete-data-loss

[Blargian]

@Algunenano would you mind taking a look when you have a chance and provide some feedback? It's for an issue you created a while back for adding a KB article on recovering from corrupt keeper snapshots.

Preview link: https://clickhouse-docs-61omkztki-clickhouse.vercel.app/docs/knowledgebase/recovering-from-corrupt-keeper-snapshot

[Algunenano]

Added a few comments. Looping @antonio2368 in case he want's to add come comments