URL query params should be optional

[hftf]

For example, if any clause from the query string below is removed, then 0 results are returned. App should assume that a param is empty by default when not explicitly given. This should only really effect URL human-readability, so not a high priority, but it is nice to have for sharing search results or handling URLs manually.

https://www.qbreader.org/db?queryString=foo&categories=&subcategories=&alternateSubcategories=&difficulties=&maxReturnLength=&questionType=all&randomize=false&exactPhrase=false&powermarkOnly=false&regex=false&ignoreWordOrder=false&searchType=all&setName=&tossupPagination=1&bonusPagination=1&minYear=&maxYear=

Compare:

https://aseemsdb.me/results?query=foo