Ensure all parts are accessible using only the keyboard and can be navigated

[alohr51]

1. Ensure users can navigate and interact with all content functionality using only the keyboard (tab, shift, etc...)

2. components activated by keyboard can be dismissed by keyboard too (esc key or similar)

   1. when canceled the focus is returned to the trigger element

3. Ensure that the text of each link describes the purpose of the link appropriately.

   1. For example the text/link should not say for our documentation page <a href="docs">click here</a> but should say something like: check out our <a href="docs">documentation page</a>