Fix activeBaseRegEx and activeClassName for home link. (#23)

## Describe your changes
Fixes the active styling issue with the "home" link.

## Issue ticket number and link
None

## What type of PR is this? (check all applicable)

- [ ] Refactor
- [ ] Feature
- [ ] Bug Fix
- [ ] Optimization
- [ ] Database
- [X] Documentation Update
- [ ] Infrastructure
- [ ] CI/CD

docusaurus.config.ts

@@ -99,7 +99,9 @@ const config: Config = {
         {
           to: '/apollo-docs/',
           position: 'left',
-          label: 'Home'
+          label: 'Home',
+          activeClassName: 'navbar__link--active',
+          activeBaseRegex: '^(\/apollo-docs\/)$',
         },
         {
           type: 'doc',