added style sheet

frontend/package-lock.json

@@ -8,6 +8,7 @@
       "name": "frontend",
       "version": "0.0.0",
       "dependencies": {
+        "picnic": "^7.1.0",
         "vue": "^3.5.30",
         "vue-cookies": "^1.8.6"
       },
@@ -994,6 +995,18 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/picnic": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/picnic/-/picnic-7.1.0.tgz",
+      "integrity": "sha512-OFoJClCDSaCnavs7QZPMIIjrodUO8m6V+GBNOWaIN4kk3IjzSAd2kp/RfkpZRwXK2u71q5mJ3UQaQjHJRr3dnw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=4.0.0"
+      },
+      "funding": {
+        "url": "https://www.paypal.me/franciscopresencia/19"
+      }
+    },
     "node_modules/picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",