[Feature request] make tags clickable like projects and contexts

[awmottaz]

Is your feature request related to a problem? Please describe.

I like how projects and contexts are underlined and clickable, pulling up a search for that project or context. I would like the same for tags ([key]:[value] syntax)

Describe the solution you'd like

1. Click on the key to filter tasks with those keys. For example, if I use a relatesto:[Project Name] in several tasks and click on the "relatesto" portion of the tag, it will filter my tasks and show only those that have a relatesto:[something] tag.
2. Click on the value to filter by tasks that have the full tag verbatim. For example, if I use tag:foo in several tasks, I should pull them up by clicking on the foo.

Describe alternatives you've considered

I can filter these manually with the search input. For the equivalent search by key, I would search for "relatesto:". For the key-value pair, I would search for "tag:foo".

Additional context

None