add artists/tracks pages; more components; css cleanup

admin/templates/html/components/release/release.html

@@ -0,0 +1,23 @@
+{{define "release"}}
+<div class="release">
+    <div class="release-artwork">
+        <img src="{{.GetArtwork}}" alt="" width="128" loading="lazy">
+    </div>
+    <div class="release-info">
+        <h3 class="release-title">
+            <a href="/admin/releases/{{.ID}}">{{.Title}}</a>
+            <small>
+                <span title="{{.PrintReleaseDate}}">{{.ReleaseDate.Year}}</span>
+                {{if not .Visible}}(hidden){{end}}
+            </small>
+        </h3>
+        <p class="release-artists">{{.PrintArtists true true}}</p>
+        <p class="release-type-single">{{.ReleaseType}}
+        (<a href="/admin/releases/{{.ID}}#tracks">{{len .Tracks}} track{{if not (eq (len .Tracks) 1)}}s{{end}}</a>)</p>
+        <div class="release-actions">
+            <a href="/admin/releases/{{.ID}}">Edit</a>
+            <a href="/music/{{.ID}}" target="_blank">Gateway <img class="icon" src="/img/external-link.svg"/></a>
+        </div>
+    </div>
+</div>
+{{end}}