App icon thumbnails in App Manager are incorrectly sized relative to the page

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X
• Fix Version/s: 7.1.X, Master
• Component/s: App Management > App Manager
• Labels: None
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/60898

Steps to reproduce:

1. Used 7.1 DXP RC1 test build (https://release.liferay.com/1/userContent/liferay-release-tool/7110/20180627210305559/portal/)
2. Start up portal, log in
3. Navigate to Product Menu -> App Manager

Expected result: Thumbnails render proportionately to the page and don't look ugly

Actual result: Icon thumbnails are huge and ugly