refactor(directory): redirect with exact changes in query

[Oxiang]

Problem

The directory page's query string display the entire query parameter.

Solution

Change the query string to display the exact changes

When the link is shared to someone else, the other party will have an easier time identifying the search query and the relevant filters/sort that was applied.

This will be much harder to do when the entire query parameter is stuck onto the query string.

Before & After Screenshots

BEFORE:
With query as 'test' and select 'link'

AFTER:
With query as 'test' and select 'link'

[liangyuanruo]

@Oxiang could you elaborate further on what are the differences between the old and new UX, if a user were to share the link with someone else?

[LoneRifle]

@liangyuanruo it's one of conciseness - similar to the problem you described in #323

[LoneRifle]

lgtm, merge when ready