Bug 37734: Fix insert runtime parameter button in reports

Bug 37734: Fix insert runtime parameter button in reports

The drop down item links had two class attributes which
prevented javascript from opening the modal.
This patch combines the classes into one class attribute.

To test:
1. Go to Reports > Create from SQL
2. Click the Insert runtime parameter button
3. Click on any of the drop down options
4. Nothing happens :(
5. Apply patch
6. Repeat steps 2 and 3 for all different parameters
7. Notice the modal launches :)
8. Confirm the parameters are inserted as expected

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Emily Lamancusa <emily.lamancusa@montgomerycountymd.gov>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>