Center menu items in IE11

**Impact**
Describe the impact, i.e. what the impact is, and number of users impacted.

**Describe the bug**
IE11 needs more styling for menu items in Director List, Todo list etc

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'https://dev.bcregistry.ca/cooperatives/'
2. Click on 'Stand-alone COD'
3. Scroll down to 'Directors'
4. Click on the "Chevron"

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
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**Desktop (please complete the following information):**
- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

**Smartphone (please complete the following information):**
- Device: [e.g. iPhone6]
- OS: [e.g. iOS8.1]
- Browser [e.g. stock browser, safari]
- Version [e.g. 22]

**Additional context**
Add any other context about the problem here.