New exception button pushed to new line

[philip-cline]

Observed behavior (please include a screenshot if possible)

The New Exception button is pushed awkwardly to a new line in the UI, which makes it difficult to click the Edit Schedules button.

Expected behavior

The New Exception button should be rendered in line with the toolbar.

Steps to reproduce the problem

1. Head to https://gtfs.ibi-transit.com/
2. Open the editor for any feed
3. Open Calendar menu
4. Click exceptions tab
5. Verify that the new exception button does not render properly.

Any special notes on configuration used

NA

Version of datatools-ui and datatools-server if applicable (exact commit hash or branch name)