fix: 🐛 add sugarss as optional dependency

Author: kaisermann

Diff for: package.json

@@ -105,6 +105,7 @@
     "pug": "^3.0.0",
     "sass": "^1.26.8",
     "stylus": "^0.54.7",
+    "sugarss": "^2.0.0",
     "svelte": "^3.23.0",
     "typescript": "^3.9.5 || ^4.0.0"
   },
@@ -136,6 +137,9 @@
     "stylus": {
       "optional": true
     },
+    "sugarss": {
+      "optional": true
+    },
     "svelte": {
       "optional": true
     },