Tag enhancement implemented

[ackernaut]

Enhancement

When a team is working on projects that span across common work themes (epics, recurring, etc.), team members want a smart tagging system so that they can tag and filter projects.

Spec:

• Users can type tags anywhere in the content, beginning with a hashtag
• An inline autocomplete (and automagical, I might say) menu appears (triggered by the keystroke of a hashtag) that suggests existing tags (to reduce duplicates)
• Users can click tags to filter projects by that tag (which updates the smart search bar and/or existing filter state [TBD, link here])
• Alternatively, users can filter by tags using the smart search bar and/or some other filter control [TBD, link here]

Candidates for superpowers:

• Consider the ability to enable/disable tag superpowers at the team settings level
• #private (see Refactor actions as privately-labelled projects #842) makes a project only visible to the owner (consider styling the card with “private” styles [use legacy Action card colors? use a cooler incognito theme?]
• #weekly cards auto-move from Done back to Active, #monthly cards auto-move from Done back to Future (at the conclusion of a weekly meeting)
• #priority each team member can mark one card as their priority (signals to other team members what their No. 1 project is at the moment—if this tag has a superpower it is that it can only exist on 1 project per team member. If a user types #priority on a different project it is removed from the previous projects.) (perhaps we have a highlighted styling denoting a #priority card?).
• +"Or, log in" link doesn't work (homepage) #123 associates the project with another project by visible ID
• >"Or, log in" link doesn't work (homepage) #123 references a project blocked by the this project
• <"Or, log in" link doesn't work (homepage) #123 references a project that is blocking this project
• newer idea (2017-07-26) what about #snoozed-1d or #snoozed-2w or #snoozed-3m where we append snoozed with a timeframe (1-3 + d/w/m). We could also have a custom inline menu like the link viewer/editor where users have 3 options for number and 3 options for time unit. They can type 1, 2, or 3 and d, w, or m (or select them with the click/tap). #snoozed filter shows all whereas #snoozed-2w only shows that specific timeframe.
• Adding a tag in the text of an agenda item: a card could be referenced "Or, log in" link doesn't work (homepage) #123 and would be the first card in the row when that agenda item is processed. See Create agenda item from card #996

Considerations for integrations:

• GitHub, when a hashtag appears before an issue number on GitHub, it should form a link. In our dashboard should we link to GitHub or to an imported, synced copy of the issue in our own software?

Estimated effort: 23 points (see CONTRIBUTING.md)

[ackernaut]

Capturing ideas here (I imagine this will change a lot as we explore).

[jordanh]

Partially implemented, moving remainder of this issue to future epic

[jordanh]

We know this is going to come back, but we're going to ice box this for now