UI updates from Polished Hosted

[phoward38]

Apply UI updates done in polished_hosted:

• [x] shinyDashboardPlus
• [x] @phoward38 Look up others

Before committing:

• [x] (IMPORTANT) Run devtools::check() (since you're bringing in shinyDashboardPlus)

[phoward38]

@phoward38 Confirm all of these are done (including admin updates) & close

[phoward38]

@merlinoa Do we want to make the Dashboard chart interactive (like in polished_hosted)?

[merlinoa]

@phoward38 no let's not update the dashboard chart for now. I'm still not sure if we are going to keep that dashboard long term. Closing this out.