Add google tasks preset (#63)

src/settings.ts

@@ -108,7 +108,18 @@ html > body > div:first-child > header:first-child > div > div:first-child > div
         zoomLevel: 1,
         forceIframe: false,
         customCss: ""
-    }
+    },
+    'google task': {
+        url: 'https://tasks.google.com/embed/?origin=https://calendar.google.com&fullWidth=1',
+        displayName: 'Google Task',
+        icon: 'list-checks',
+        hideOnMobile: true,
+        addRibbonIcon: false,
+        openInCenter: false,
+        zoomLevel: 1,
+        forceIframe: false,
+        customCss: ''
+      }
 };
 
 export interface CustomFramesSettings {