Reformat the How-To page

[benjkent]

Create a list box of How-To Blazor components that consist of a Heading and dropdown list of steps. Each step needs simple text and an image of the appropriate screen.

1. How to add app to device home screen. (IOS and Android)
2. How to add a message to favorites page.
3. How to remove favorites from the favorites page.
4. How to check your version.
5. How to update app.