Saved routes text filter

[mvl22]

Suggestion from a user who has lots of saved routes:

A simple text search would be helpful. I might have named a route something like "Mendip Campsite to Gorge top", so if I searched on any of those words the route would be shown. Then If click on it, it plots the route like normal.

This could be done as a simple filter at the top of the saved routes list, that does an in-place substring filter.