client:Removing the default css of vite React app

This commit removes the default vite react app css as its not going
to be used in the future and it was interferring with the existing components.

fixes:#43

frontend/src/index.css

@@ -1,72 +1,3 @@
 @tailwind base;
 @tailwind components;
 @tailwind utilities;
-
-:root {
-    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
-    line-height: 1.5;
-    font-weight: 400;
-
-    color-scheme: light dark;
-    color: rgba(255, 255, 255, 0.87);
-    background-color: #242424;
-
-    font-synthesis: none;
-    text-rendering: optimizeLegibility;
-    -webkit-font-smoothing: antialiased;
-    -moz-osx-font-smoothing: grayscale;
-}
-
-a {
-    font-weight: 500;
-    color: #646cff;
-    text-decoration: inherit;
-}
-a:hover {
-    color: #535bf2;
-}
-
-body {
-    margin: 0;
-    display: flex;
-    place-items: center;
-    min-width: 320px;
-    min-height: 100vh;
-}
-
-h1 {
-    font-size: 3.2em;
-    line-height: 1.1;
-}
-
-button {
-    border-radius: 8px;
-    border: 1px solid transparent;
-    padding: 0.6em 1.2em;
-    font-size: 1em;
-    font-weight: 500;
-    font-family: inherit;
-    background-color: #1a1a1a;
-    cursor: pointer;
-    transition: border-color 0.25s;
-}
-button:hover {
-    border-color: #646cff;
-}
-button:focus,
-button:focus-visible {
-    outline: 4px auto -webkit-focus-ring-color;
-}
-
-@media (prefers-color-scheme: light) {
-    :root {
-        color: #213547;
-        background-color: #ffffff;
-    }
-    a:hover {
-        color: #747bff;
-    }
-    button {
-        background-color: #f9f9f9;
-    }
-}