Improve expand button and styling

[fdiblen]

Refs: #44 #45

Changes

• Show expand button only when it is necessary
• Adjust alignment (center everything except url)
• Always show sorting arror
• Adjust header font
• Adjust body font
• Adjust icon sizes
• Smaller font size for stdout and stderror
• Show expand button only if there is stderr or stdout
• Show stderr and stdout only when they exist

How to test

1. Add some urls to a txt file
   Example file content:

https://github.com/SCM-NV/qmflows
https://github.com/3D-e-Chem/sygma
https://github.com/3D-e-Chem/3D-e-Chem-VM
https://github.com/NLeSC/ahn-pointcloud-viewer-ws
https://github.com/NLeSC/ahn-pointcloud-viewer
https://github.com/nlesc-ave/ave-rest-service

2. Run fairtally
   fairtally --input-file rsd-urls.txt
3. Compare tally.html with the screenshot below

Screenshot

[sverhoeven]

I verifed that expand button has moved and is only shown when stderr|stdout is truthy, good job

When expanded the collapse button moves out of screen. Can a scrollbar be added to the stdout/stderr div?

Showing the sort icons always is confusing to me. Which column is it sorted on now is not clear. Can the icons of non-sorted colums be hidden or grayed out?

[sverhoeven]

Can log be used as text inside the header?