[ENHANCEMENT] Allow search based on description

[jcscottiii]

Is your feature request related to a problem? Please describe. When a user currently searches without any terms, we search based on a feature's ID or name. However, both of those may not be obvious to the user. See https://github.com/GoogleChrome/webstatus.dev/issues/617

Describe the solution you'd like To allow searching based on contents of the description may help with this.

Performance analysis should be done to see if we can add this to the existing no term query. Or should we require users to add a description term e.g. desc:@property

Also, in either case, we should consider expanding our allowed characters for certain characters. Like the @ sign.