Shorten "enable LFS" message for design management

Merged Tom Quirk requested to merge design-management-shorter-lfs-msg into master

What does this MR do?

Updates helper message for design management, where we instruct user to enable LFS for the GitLab project in order to use Design Management.

Issue: #230538 (closed)

Screenshots

Desktop Mobile
Screen_Shot_2020-07-21_at_11.53.50_am Screen_Shot_2020-07-21_at_11.54.07_am

Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

  • Label as security and @ mention @gitlab-com/gl-security/appsec
  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
  • Security reports checked/validated by a reviewer from the AppSec team
Edited by Tom Quirk