[Frontend] Implement the remaining time views of the table

[ThorbenJones]

The weekly view is already implemented.
The same logic for the weekly view can be used and optimized, for all other time views.

Functions can be found in the store folder : timeTracking.js
Logic can be found in the components folder : TimeOverview.vue

Each entry documents the time and date, worked on a issue.
The time for the weekly view should be summarized and be displayed on the page in a good visible place. (Above the table - each column?)

The monthly view focuses only on the weekly summarized time.
So each column represents a week (4 Weeks max) and each week displayes the time worked.

The same for the yearly view.
Each column views the monthly work done (Jan - Dec)