docs: added + updated build and deployment guides

[shahednasser]

• Added a new guide in main docs on how the build command works
• Added a general deployment guide
• Other general fixes

Closes DX-1049

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Name	Status	Preview	Comments	Updated (UTC)
api-reference	🔄 Building (Inspect)	Visit Preview	💬 Add feedback	Nov 13, 2024 0:29am
api-reference-v2	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 13, 2024 0:29am
docs-ui	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 13, 2024 0:29am
docs-v2	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 13, 2024 0:29am
medusa-dashboard	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 13, 2024 0:29am
resources-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 13, 2024 0:29am

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
medusa-docs	⬜️ Ignored (Inspect)	Visit Preview		Nov 13, 2024 0:29am

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