[Feature] Reports and analytics

As it was mentioned in the [MVP feedback issue](https://github.com/dwyl/mvp/issues/140#issuecomment-1285212399), reporting would be an extremely valuable feature to have, especially in a collaboration environment.

With the use of timers the `person` has access to their usage patterns when working on an `item`.
Add this with the `tag` system, we can show analytics on different perspectives.

Here's one example of what we can do.
We can _show_ graphs of the time of the day the **`person`** usually works.
Like so:


We can also show the time the **`person`** usually takes per category/tag...

There are lots of analytics to be explored. If this is meant to help the **`person`** increase their time management, helping them spot opportunities in a visual manner is a great thing to have ☺️