opened
martenbjork
username_0
### WHAT is this pull request doing?

- Makes the global search backdrop visible in the DetailsPage
- Changes the background of the backdrop to transparent (when new DL is on)
- Adjusts the z-index of the backdrop. Before, the overlay lived inside the search results. Due to recent changes, the search results has a background, which caused the overlay to overlay that very background. So, I've moved the overlay outside the results wrapper.

<img width="1265" alt="Screen Shot 2020-10-13 at 11 22 18 AM" src="https://user-images.githubusercontent.com/875708/95881348-7f53c400-0d46-11eb-87e2-1eb9add93a2c.png">

<img width="1266" alt="Screen Shot 2020-10-13 at 11 22 08 AM" src="https://user-images.githubusercontent.com/875708/95881334-7cf16a00-0d46-11eb-96fc-4638aeb0de62.png">

![IMG_5652](https://user-images.githubusercontent.com/875708/95881901-14ef5380-0d47-11eb-9292-a4f96614d140.PNG)
![IMG_5653](https://user-images.githubusercontent.com/875708/95881922-191b7100-0d47-11eb-8fe8-e05ff8594744.PNG)
[new DL] Change backdrop properties 
issue