Use Case or Problem
When navigating through notes via links you often need to get back to the parent notes. In the desktop version you can do this with the arrows in the title bar or with a keyboard shortcut.
This however is not possible on mobile (phone).
Proposed solution
Adding arrows to the top or bottom to navigate backwards and forwards through notes/links that you visited before.
Or (maybe not possible): swiping to the right or left on the edge of your screen (just like iOS navigation). Sidebars can be relocated to buttons instead of swiping.