0.3.1 Infinite loop on CollectionList page

[michaelbromley]

Describe the bug
In @vendure/admin-ui v0.3.1 there is an infinite loop on the CollectionList page which causes the app to hang.

To Reproduce
Steps to reproduce the behavior:

1. Go to Collections in the main nav
2. Observe that the app is hung and the tab uses lots of CPU

Expected behavior
Not hanging

Additional context
Initial investigation shows this is an infinite change-detector loop caused by this line:

vendure/packages/admin-ui/src/app/shared/pipes/has-permission.pipe.ts

Line 37 in 5ee4564

this.changeDetectorRef.markForCheck();

That markForCheck() call was added to fix the issue where other uses of this pipe would not get change-detected in OnPush components.