chore(frontend): upgrade to tailwind v2

frontend/tailwind.config.js

@@ -1,6 +1,44 @@
+const colors = require("tailwindcss/colors");
+
 module.exports = {
   purge: {
     // css is purged via postcss-purgecss
     enabled: false,
   },
+  theme: {
+    colors: {
+      transparent: "transparent",
+      current: "currentColor",
+
+      black: "#000",
+      white: "#fff",
+
+      // Tailwind v1 Colors
+      gray: {
+        100: "#f7fafc",
+        200: "#edf2f7",
+        300: "#e2e8f0",
+        400: "#cbd5e0",
+        500: "#a0aec0",
+        600: "#718096",
+        700: "#4a5568",
+        800: "#2d3748",
+        900: "#1a202c",
+      },
+
+      green: {
+        100: "#f0fff4",
+        200: "#c6f6d5",
+        300: "#9ae6b4",
+        400: "#68d391",
+        500: "#48bb78",
+        600: "#38a169",
+        700: "#2f855a",
+        800: "#276749",
+        900: "#22543d",
+      },
+
+      yellow: colors.yellow,
+    },
+  },
 };