update location of create button

#### What's this PR do?
moves the create update button to the top of the page

#### Any background context you want to provide?
We wanted to move the create update button above the list of project updates so we could avoid scrolling to the bottom of the page

#### What are the relevant tickets?
https://sprint.ly/product/21477/item/18

#### Screenshots (if appropriate)

#### Questions:
- Do migrations need to be ran? **Nope**