[DOCS] Update docs for data stream aliases

[jrodewig]

#72613 added data stream support to aliases, formerly known as index aliases. This tracks related work in the alias docs:

• Update index alias glossary entry. [DOCS] Add alias to glossary #73065, [DOCS] Add alias glossary term stack-docs#1664, [DOCS] Update anchor and xrefs for alias glossary entry #73169, [DOCS] Remove index alias anchor for alias glossary entry stack-docs#1666
• Create an alias guide, pulling information from the existing index alias API reference. [DOCS] Add alias guide #73062
• Update alias xrefs. [DOCS] Update alias xrefs #73380
• Update alias API docs. [DOCS] Update alias API docs for data stream aliases #73419
• Update aliases object in other API docs. [DOCS] Reuse aliases object properties in API docs #73421
• Update security docs. [DOCS] Update alias security for data stream aliases #73436
• Update snapshot/restore docs. [DOCS] Update snapshot/restore for data stream aliases #73438
• Audit alias references. [DOCS] Update alias references #73427

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Pinging @elastic/es-core-features (Team:Core/Features)

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Pinging @elastic/es-docs (Team:Docs)