Hey there, the on-going 'syncing' state means that the Hearth daemon still processes your changes.
How many files have you tried to add and how big were they?
If that doesn't stop after a while, consider restarting Hearth app.
Regarding the Finder integration, if neither the context menu item to be shown nor the Hearth toolbar button then make sure the Hearth Finder extension is enabled (Visit the System Preferences > Extensions > Finder and enable Hearth) and the restart Finder by option+right clicking the Finder icon in your Dock and selecting 'Relaunch'.
How many files have you tried to add and how big were they?
If that doesn't stop after a while, consider restarting Hearth app.
Regarding the Finder integration, if neither the context menu item to be shown nor the Hearth toolbar button then make sure the Hearth Finder extension is enabled (Visit the System Preferences > Extensions > Finder and enable Hearth) and the restart Finder by option+right clicking the Finder icon in your Dock and selecting 'Relaunch'.
Hope that helps!