Add -q <search_query> command line argument [develop]

[mark-henry]

Related to https://github.com/scdl-org/scdl/pull/511

Specify -q instead of -l to use the url of the first search result.

Also made some changes to options docstring at claude's recommendation

[7x11x13]

The develop branch hasn't been used for quite some time, since before I even became a maintainer on this project