change parameter to be the mountpoint path

Author: infeo

src/main/java/org/cryptomator/integrations/filemanagersidebar/SidebarService.java

@@ -2,11 +2,12 @@
 
 import org.cryptomator.integrations.common.IntegrationsLoader;
 
+import java.nio.file.Path;
 import java.util.Optional;
 
 public interface SidebarService {
 
-	SidebarEntry add();
+	SidebarEntry add(Path mountpoint);
 
 	interface SidebarEntry {
 		void remove();