feat: optimize loading of styles

public/app.css

@@ -1,100 +0,0 @@
-p {
-  font-size: 16px;
-}
-
-h1,
-h2,
-h3 {
-  color: var(--text-light);
-  font-family: 'Roboto', sans-serif;
-}
-
-article>h1 {
-  font-size: 28px;
-}
-
-article>h2 {
-  font-size: 22px;
-  margin-top: 20px;
-}
-
-article>h3 {
-  font-size: 18px;
-  margin-top: 16px;
-}
-
-article>p>a,
-article a,
-.top-info>.links a {
-  color: var(--fill) !important;
-}
-
-.dark .noise::before {
-  opacity: 1;
-}
-
-.noise::before {
-  opacity: 0.3;
-  content: "";
-  position: absolute;
-  height: 100%;
-  width: 100%;
-  background: url(/images/noise.webp);
-  background-size: 200px;
-  pointer-events: none;
-  /* opacity: 0.3; */
-}
-
-img {
-  max-width: 100%;
-  height: auto;
-}
-
-video {
-  border-radius: 10px;
-}
-
-.center {
-  display: flex;
-  justify-content: center;
-  align-items: center;
-}
-
-.astro-code {
-  padding: 20px;
-  border-radius: 10px;
-}
-
-article iframe {
-  border-radius: 10px;
-}
-
-picture.thumb::before {
-  content: "";
-  position: absolute;
-  bottom: 10px;
-  right: 10px;
-  width: 20px;
-  height: 20px;
-  opacity: 0;
-  transition: opacity 0.3s;
-  pointer-events: none;
-  animation: spin 1s linear infinite;
-  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' class='icon icon-tabler icons-tabler-outline icon-tabler-loader-2'%3E%3Cpath stroke='none' d='M0 0h24v24H0z' fill='none'/%3E%3Cpath d='M12 3a9 9 0 1 0 9 9' /%3E%3C/svg%3E");
-  background-size: cover;
-  z-index: 2;
-}
-
-picture.thumb-loading::before {
-  opacity: 0.5;
-}
-
-@keyframes spin {
-  0% {
-    transform: rotate(0deg);
-  }
-
-  100% {
-    transform: rotate(360deg);
-  }
-}