The "Modules" popup seems to be covered by the "Language" card in the Synapse app's "Settings" tab.
Steps to reproduce:
- Open Synapse
- Make Synapse as horizontally small as possible
- Open the "Settings" tab by clicking the "Settings" icon in the upper right
- Observe that the "Modules" popup is underneath the "Language" card.
I don't see the same covering behavior in the other tabs.