Squashed 'lib/QINAppStoreMainWindow/' content from commit e252a1f

git-subtree-dir: lib/QINAppStoreMainWindow
git-subtree-split: e252a1f7cb6b1369f5fa93ceadd04620cb9480a9
Merge commit '6322fabab59d8edfdd83ac15875a0f67ca32fa90' as 'lib/QINAppStoreMainWindow'