Overview of status of all targets

[bkdekoning]

In addition to an overview of the total amount of time tagged over a period of time, I think it would be great to have a global overview of all set targets and the amount of progress made on them during that period. I believe this is also alluded to in #121 ("Overview of the status of the defined goals").

The reason I think it would be useful is that targets (as far as I can tell) are now only visible when you have (1) have spent at least some amount of time on the tag during a certain period, and (2) specifically select that tag. It would be nice to have a single overview of 'what still needs to be done'.

I made some very rough mock-ups attached below of what I think it could look like. An alternative way of doing it would be to always show tags that have a target assigned to them in the 'Total' overview, and their progress.

I'm more than happy to try and implement this. Just wanted to raise this issue to see if (a) this would be something that people are interested in, and (b) there is not someone already working on this.

Curious to hear your thoughts!