docs(common): Revamp Typical Workflow and simplify First Steps

[dimodi]

The main changes, which triggered this PR are:

• Remove defer from the First Steps tutorials.
• Remove the extra .razor layout from the First Steps tutorials.
• Move the above to Typical Workflow.

In addition:

• New CDN article that aims to gather all the information in one place. The article will be updated with the theme CDN after the Themes documentation revamp when we will drop the documentation for the Kendo CDN and replace it with unpkg.
• Everything else is just polishing and various language and SEO improvements.

[github-actions]

Hello @dimodi,

Check the below option if you would like to automatically generate PR to production. The automation uses the branch for the cherry-pick, and then will delete the branch. Please, do not delete it manually.

• create PR to production

[ikoevska]

Note that I have expressed some concerns over the contents of Typical Workflow and CDN. I believe both pages would benefit from a re-write. The Getting Started section as a whole probably needs some redesign as well. Feel free to log these concerns for later and address them in a separate PR (hence, the approval).

One other thing I would like to recommend going forward is to produce smaller PRs, focused around one particular documentation task. This speeds up the review and the publishing process and, generally, caters to a better structured history within the repo.

[github-actions]

Here you are the link to your PR to production: 1996