The sidebar of the doc site show inconsistent indents and crops out the page title

[tlwu2013]

The page titles on the sidebar (olm.operatorframework.io) got cropped out in some cases due to the erroneous indent setups.

This happens on both Chrome and Firefox.

OK case:

1. Getting Started

2. Contribution Guidelines

NG cases:

1. Documentation page:

2. Core Tasks

3. Concepts

4. Concepts --> OLM Architecture