add blog index to admin dashboard

admin/static/blog.css

@@ -0,0 +1,80 @@
+.blog-collection h2 {
+    margin: .5em 1em;
+    font-size: 1em;
+    text-transform: uppercase;
+    font-weight: 600;
+    color: var(--fg-0);
+}
+
+.blogpost {
+    padding: 1em;
+    display: block;
+    border-radius: 8px;
+    background-color: var(--bg-2);
+    box-shadow: var(--shadow-md);
+}
+
+.blogpost .title {
+    margin: 0;
+    font-size: 1.5em;
+}
+
+.blogpost .title small {
+    display: inline-block;
+    font-size: .6em;
+    transform: translateY(-0.1em);
+    color: var(--fg-0);
+}
+
+.blogpost .description {
+    margin: .5em 0 .6em 0;
+    color: var(--fg-1);
+}
+
+.blogpost .meta {
+    margin: 0;
+    font-size: .8em;
+    color: var(--fg-0);
+}
+
+.blogpost .meta .author {
+    color: var(--fg-1);
+}
+
+.blogpost .meta .author img {
+    width: 1.3em;
+    height: 1.3em;
+    margin-right: .2em;
+    display: inline-block;
+    transform: translate(0, 4px);
+    border-radius: 4px;
+}
+
+.blogpost a:hover {
+    text-decoration: underline;
+}
+
+.blogpost .actions {
+    margin-top: .5em;
+    display: flex;
+    gap: .3em;
+    user-select: none;
+    color: var(--fg-3);
+}
+
+.blogpost .actions a {
+    padding: .3em .5em;
+    display: inline-block;
+
+    border-radius: 4px;
+    background-color: var(--bg-3);
+    box-shadow: var(--shadow-sm);
+
+    transition: color .1s ease-out, background-color .1s ease-out;
+}
+
+.blogpost .actions a:hover {
+    background-color: var(--bg-0);
+    color: var(--fg-3);
+    text-decoration: none;
+}