[Fixes #80595750] clicking on "All Workspaces" the first time should now bring up all worksapces
[Finishes #80390790] -configure option for individual modules is now preserved when changing dashboard setup
css refactoring

- addition of some standard values; for border-radius
- no functional or positional changes
[Finishes #80595830] -adds loading image for Your Workspaces module
css styling changes

no positional or behavioral changes
- revision of the dashboard css to use common variables for margins
improving css

- changing the scss variable from $border-width
to $default-border-width for better semantic readability
- no function or behavioral changes
merging master into mainpageMargins