UI - add npm "prettier" package

[mreynolds389]

Issue Description

Add npm package "prettier" to the UI project. It currently reports a lot of issues.

[droideck]

@mreynolds389 note that I'm currently working on #6376 and it touches a lot of the code. So, this issue should probably be worked on after my PR is merged...

[mreynolds389]

@mreynolds389 note that I'm currently working on #6376 and it touches a lot of the code. So, this issue should probably be worked on after my PR is merged...

It's a small change just to add the package. We can run "prettier" later...

[mreynolds389]

4648172..ec6c215 389-ds-base-3.0 -> 389-ds-base-3.0