(feat:layout) Add base CSS styles for Tailwind & removing base HTML styles

src/ui/css/App.scss

@@ -0,0 +1,25 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+body {
+    margin: 0;
+    outline: 0;
+    padding: 0;
+}
+
+p {
+    margin: 0;
+}
+
+h1 {
+    margin: 0;
+}
+
+h2 {
+    margin: 0;
+}
+
+h3 {
+    margin: 0;
+}