Auth Web: fix table action button alignment

**Describe the bug in current situation**
The drop-down menu alignment is done incorrectly (ie, uses negative left margin instead of aligning the right side as expected). When the screen size is excessively small, the drop-down menu is partly hidden underneath the scrollbar.

**Link bug to the User Story**
None.

**Impact of this bug**
The drop-down menu does not always align with the right side of the button. Also, this restricts further alignment fixes.

**Chance of Occurring (high/medium/low/very low)**
This is only a problem with very small screen sizes, which can be reproduced by zooming in a large amount.

This is fine on normal size screens.

**Pre Conditions: which Env, any pre-requesites or assumptions to execute steps?**
See above.

**Steps to Reproduce**
Steps to reproduce the behavior:
1. Login to BCROS
2. Go to My Business Registry page
3. Click drop-down button on various entities
4. See error

**Actual/ observed behavior/ results**

**Expected behavior**
The drop-down menu aligns with the right side of the action button.

**Screenshots/ Visual Reference/ Source**
See above.