Walter/tag picker

[waltervan00]

Closes #84 .

To test the ui, please spin up a local server and test the ui.

• Ensure that tags can be attached once the detailed panel is in editing mode
• Ensure that cards can be successfully updated (currently affected by Frontend: Calling App.newTag() or Tag.delete() reverts unstaged changed made to detail card. #102 )
• Ensure that tags can be successfully created for a user
• Ensure that tags can be deleted from a user (an error may be thrown see Frontend: Client Crash when deleting a tag attached to a card. #100 )
• Ensure that clicking away from both callouts only closes the TagEditor and that changes made in the Editor persist

[oldbugo]

So I have spotted two things that I think we may need to consider.

The first is in the cardDetailView, the user cannot add/edit the tags before edit mode is engaged.

In this view, the "X" button to disassociate the tags should be present when the mouse is hovering over it. And the add/edit tag button should be appended at the very end.
I think it is better to have the editing tag functions separate from the editing cards.

The second thing I found was that in tagPicker, the tag will disappear from the list of tags once you have associated it with the card. With this implementation, the user won't be able to edit the tags (e.g. change colour) unless they first disassociated.

Other than that, very nicely done.

[oldbugo]

Another issue I encountered is when I go tag picker --> associated any tag/s --> edit tag --> click out to close tag edit, the state will be reverted back to before I associated any tags.

[chomosuke]

Another issue I encountered is when I go tag picker --> associated any tag/s --> edit tag --> click out to close tag edit, the state will be reverted back to before I associated any tags.

a more general description would be any edit to any tags would override state of cardDetail.

I believe #108 fixes this.

[waltervan00]

Another issue I encountered is when I go tag picker --> associated any tag/s --> edit tag --> click out to close tag edit, the state will be reverted back to before I associated any tags.

I'll be testing this shortly using #108

[chomosuke]

Tag's components should have their own sub folder like cardDetails' components do imo.

other than that lgtm

[oldbugo]

Another issue I encountered is when I go tag picker --> associated any tag/s --> edit tag --> click out to close tag edit, the state will be reverted back to before I associated any tags.

I'll be testing this shortly using #108

yes sir

[shangzhel]

Mostly code style changes.