Inconsistent Headers in Events List Tabs

[JohnCox2211]

When on the Events List page, some tabs will show a header as such with no upcoming events:

Some will show like this:

And the Student-Led-Services shows like this:

This seems to be because there are past events in these categories, but in the second case I showed, there are no past events. Find a way to make these consistent with one another.

[JohnCox2211]

Inconsistent Headers in Events List Tabs #1636

[BrianRamsay]

I standardized the case when there are no events across the tabs in commit 79d6377, but it would probably be good to combine the "no upcoming events" notice with this message so that is more standardized.