Export json of IR is displayed badly

[aklochkova]

Steps to reproduce behavior

1. Create an IR and save it
2. Open export tab

Expected behavior

1. Json is shown correctly

Actual behavior

1. Json is shown badly:
   

[anthonysena]

Noting that it does look bad but it functions properly so this may not be worth addressing at this point.

[pbr6cornell]

If this is just the cosmetics of the display, and not a performance issue or bug, then I'm happy to defer until ATLAS 3.0