Rework the `mime_types` file

Context

The https://community.opengroup.org/osdu/platform/domain-data-mgmt-services/rock-and-fluid-sample/rafs-ddms-services/-/blob/main/app/resources/mime_types.py file has invalid double copyright block + more of the mime types there are not using.

Scope

Rework the file completely. Keep only the ExxonMobil copyright.