Fix/pdjb 883 remove sysop dashboard button

[JasminConterioSW]

Ticket number

PDJB-883

Goal of change

Remove disabled "dashboard" button from lc admin invitation confirmation page

Description of main change(s)

Removed the button, and the fragment that created it (not used anywhere else)

Before:

After:

Anything you'd like to highlight to the reviewer?

Checklist

Delete any that are not applicable, and add explanation below for any that are applicable but haven't been done

• Screenshots of any UI changes have been added
• Test suite has been run in full locally and is passing
• TODO comments referencing this JIRA ticket have been searched for and removed - if a future PR will address them,
  mention that here
• QA instructions have been added to the ticket (particularly if this is the last PR required to complete the ticket)

[samyou-softwire]

LGTM, after removing that attribute

it's a little sad that we'll need to add this template back if we ever add in a disabled button somewhere, though suppose it's better than having orphaned code that'll likely fall out of style

[JasminConterioSW]

LGTM, after removing that attribute

it's a little sad that we'll need to add this template back if we ever add in a disabled button somewhere, though suppose it's better than having orphaned code that'll likely fall out of style

The current pattern is to just not add a button if we don't have somewhere to go yet rather than adding a disabled button (although that might change of course!)