fix(FE): change secondary green color

Author: Manuel Proß

web/src/styles/globals.scss

@@ -10,7 +10,7 @@
     --background-start-rgb: 214, 219, 220;
     --background-end-rgb: 255, 255, 255;
     --color-primary: #3498db;
-    --color-secondary: #2ecc71;
+    --color-secondary: #45ff02;
     --color-tertiary: #e74c3c;
     --c-gray-1: #313131;
     --c-gray-2: #222222;