Update Overview panel with descriptions
For the overview panel we are going to create a page similar to the CHAOSS Community Report, having in each row a visualization with its description.
For now, this description will be the one we have in GitLab. The descriptions can be hidden when a button (location not decided). When a new user enters the project page, the descriptions will be shown. If a user clicks on the button to hide the descriptions, they won't be shown again until the user clicks again in the button.