VOTE-755 update content manager permissions to include access to admi…

[rayestrada]

…nstrative pages and new taxonomy vocab

Jira ticket

https://cm-jira.usa.gov/browse/VOTE-755

Description

Add permissions for Content Manager to access admin pages and new taxonomy vocab

Deployment and testing

Post-deploy

1. lando retune

QA/Test

1. Create a new account user/pass with a Content Manager role
2. Go to http://vote-gov.lndo.site/user/login and log in as that account
3. Check the admin toolbar to confirm that you can access the Structure > Taxonomy page and click to go
4. Add a new term under the Basics Modules vocabulary and confirm you can save

Checklist for the Developer

• A link to the JIRA ticket has been included above.
• No merge conflicts exist with the target branch.
• Automated tests have passed on this PR.
• A reviewer has been designated.
• Deployment and testing steps have been documented above, if applicable.

Checklist for the Peer Reviewers

• The file changes are relevant to the task objective.
• Code is readable and includes appropriate commenting.
• Code standards and best practices are followed.
• QA/Test steps were successfully completed, if applicable.
• Applicable logs are free of errors.