chore: update header order, components list and links

[Knorgias]

What I did

1. Moved Docs content to -> (new) section Fundamentals
2. Removed Blog section from header
3. Moved all components one level higher, no separation on type of component anymore
4. Reordered the header order
5. Fixed broken links in codebase

[changeset-bot]

🦋 Changeset detected

Latest commit: 672c8e9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 42 packages

Name	Type
providence-analytics	Minor
publish-docs	Minor
remark-extend	Minor
rocket-preset-extend-lion-docs	Minor
@lion/accordion	Minor
@lion/button	Minor
@lion/calendar	Minor
@lion/checkbox-group	Minor
@lion/collapsible	Minor
@lion/combobox	Minor
@lion/core	Minor
@lion/dialog	Minor
@lion/fieldset	Minor
@lion/form	Minor
@lion/form-core	Minor
@lion/form-integrations	Minor
@lion/icon	Minor
@lion/input	Minor
@lion/input-amount	Minor
@lion/input-date	Minor
@lion/input-datepicker	Minor
@lion/input-email	Minor
@lion/input-iban	Minor
@lion/input-range	Minor
@lion/input-stepper	Minor
@lion/listbox	Minor
@lion/localize	Minor
@lion/overlays	Minor
@lion/pagination	Minor
@lion/progress-indicator	Minor
@lion/radio-group	Minor
@lion/select	Minor
@lion/select-rich	Minor
@lion/steps	Minor
@lion/switch	Minor
@lion/tabs	Minor
@lion/textarea	Minor
@lion/tooltip	Minor
@lion/validate-messages	Minor
@lion/helpers	Patch
@lion/input-tel-dropdown	Patch
@lion/input-tel	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[tlouisse]

Question: why do we want to remove blogs from Lion nav?