Searchable column descriptions

[dbeatty10]

resolves #322

Description

Being able to search by column description has been requested multiple times (along with at least a dozen +1 upvotes):

• Search models and sources by column descriptions #140
• [CT-1309] dbt docs - column descriptions are not searchable #322
• [CT-2017] Column descriptions are also included in the search #369

Among other benefits, it was mentioned a couple times is that this would enable multi-language search at the column level.

Implementation details

The bulk of the new logic is in the fuzzySearchObj function within src/app/services/project_service.js. The code here looked a little long in the tooth, and I didn't make any attempts to improve it. Rather, I aimed for the minimal additions that would accomplish the goal. So now it's even longer in the tooth.

It appeared that at one point, this code was meant to parse values purely based on their type (string, object, array, etc), but the original intent seems to have devolved a bit. Also, arguments and label no longer appear to be used.

Down the road, a motivated individual could do some surgical refactoring of fuzzySearchObj without affecting anything else.

Screenshot

🎩 Here's an example search result:

Clicking on the result and then the "Columns" tab gives:

Checklist

• I have read the contributing guide and understand what's expected of me
• I have signed the CLA
• I have run this code in development and it appears to resolve the stated issue
• I have opened an issue to add/update docs, or docs changes are not required/relevant for this PR
• I have run changie new to create a changelog entry

[emmyoop]

LGTM