search for skills

As a bored person, I would like to be able to search for skills to learn on this app to help me get something fun to do in my bountiful free time.

The issue does not name files, tests, or an entry point. Start by inspecting the repository structure to find where skills are represented and where app interaction is handled; clarify the search behavior and data scope before implementation. Done should mean users can search the available skills and find relevant results.

Written by the indexing model from the issue text.