OptaShift: list of small issues of the new roster screen

Feel free to split off in separate jira's, so it's clear which one are resolved and which one aren't.

Some of these might be known / work in progress, feel free to adjust the description here to remove them if there's already a jira. Or cross them out with such text if they are resolved and it's too much work to make a separate jira.
I 'll mark the important ones as DEMO_REQ, because those are regressions over the 7.5.0.Final version (!= from the old roster) which prevent me from doing the demo in the youtube video.

• Score needs to be to the right of the solve button, to save vertical space. Let's put it on the far right, wdyt?
  
• When solving, the solving button needs to change into a terminate early button and text should indicate how long the solving will take. Christopher, you have good code for that in the old screen:
  
• Refresh button is missing. Let's maybe put this to the left of the solve button, so the connection between the "solving for" and the "solve" button is stronger, wdyt?
• DEMO_REQ Font of the employee name in shifts needs to be bigger.
  • If the whole name can't fit in the field, we probably want to abbreviate it with "...". For example "Elsa King" becomes "Elsa K..."
    • Hovering over the shift should somehow display the entire name of the employee.
    • We 'll likely allow assigning a color to employees later on, and use that as the shift cell's background.
• DEMO_REQ Ability to assign a shift to an(other) employee (this pins it)
• DEMO_REQ Visual indication (probably icon) if a shift is pinned. (This used to be called locked, but now we call it pinned. That affects the icon)
• Include month in "Mon 6" and "Tue 7".
  
• DEMO_REQ employee roster screen
• Not sure if this is from the roster screen, but I am getting it in my JS console: