Applies style changes to the `.guilabel` css class to better set off the
labels in the docs:
- Adds a pill box effect
- bolds the text
- Applies the `--theme-light-bg` color variable to the background
Corrections for build errors
- `mc ilm add` changed `storage-class` flags to `tier` instead. Updated
several pages with references to those flags.
- Corrects a bad reference in the `mc license info` doc to the minio
client page that was missing a hyphen.
- Fixed the sidebar scroll - with this fix, you'll be able to scroll to
the end of the left sidebar at any given screen height.
- Renamed content-navigation component and CSS class names for better
consistency.
- Changed the footer style by including it as part of the main content
area. This change is required to have the scroll fix mentioned at point
no. 1.
- Reduced the hero height by a small margin, in order to have more
sidebar scroll room on smaller devices such as 13 inch laptop and all.
- Used higher contrast color on search modal's bg and scrollbar thumb to
have better color consistency.
- Made scrollbar thumbs visible by default.
- Set sidebar scroll position to match the active doc item.
- Added custom scrollbars for code blocks.