Updates to the CLI installation guide

[pwizla]

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This PR:

• reworks the CLI installation guide to mention the new commands and all the (new or updated) possible options.
  (Note: All options are now documented in the CLI installation guide and not in the CLI reference, as the only place where options (like --debug, --db-username etc.) were documented was for the strapi new command but this command has been removed from v5.
• slightly rework the Quick Start Guide as the command is now shorter: create-strapi-app → create-strapi

Related strapi/strapi PR: strapi/strapi#20268

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Name	Status	Preview	Comments	Updated (UTC)
documentation	❌ Failed (Inspect)			Jun 12, 2024 1:15pm

[alexandrebodin]

For v5 we should definitely remove the --quickstart option from the guide so users can see all the options instead. We consider it to be deprecated and will be removed in v6

[pwizla]

Yes, Alex!
But if I do this, I need to update the rest of the Quick Start Guide (more questions to answer, etc.).

I won't do it now, because the Quick Start Guide will again change in the following weeks (re. Cloud CLI) and it takes time to update it.

At least now they could use the shorter commands and (hopefully) have roughly the same experience than in the current Quick Start Guide ( = before the Cloud CLI)

[pwizla]

In short, for the final (stable, in September) version of the v5 Quick Start Guide I'll remove the --quickstart and ensure users experience the new workflow exactly like it's described. For now, too time consuming in regards of all the other tasks I have to do.

[alexandrebodin]

:+1