[Vectorize] Allow reuse of index names

[garvit-gupta]

Summary

Context: Vectorize indexes had a limitation where the index names (the primary identifier for an index) were unique and could not be reused even after the deletion of an index.

We have now addressed that limitation and have enabled the reuse of index names.

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Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

[cloudflare-workers-and-pages]

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Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/vectorize/best-practices/create-indexes/	https://garvit-vs-289-index-name-reu.cloudflare-docs-7ou.pages.dev/vectorize/best-practices/create-indexes/
https://developers.cloudflare.com/workers/wrangler/commands/	https://garvit-vs-289-index-name-reu.cloudflare-docs-7ou.pages.dev/workers/wrangler/commands/