Add drawer component and support side thumbnails.

src/scss/drawer-inject.scss

@@ -0,0 +1,34 @@
+:host {
+    // Drawer width sizes to contents.
+    width: unset;
+};
+
+#d, #fs {
+    // Override width/height to be 100% instead of 100v[wh].
+    height: 100%;
+
+    // Position absolutely.
+    position: absolute;
+}
+
+:host([location=right]) #d {
+    // Position to the right.
+    left: unset;
+    right: 0;
+    transform: translateX(100%);
+};
+
+:host([location=right][open]) #d  {
+    transform: none;
+    box-shadow: 0px 0px 25px 0px rgba(0, 0, 0, 0.5);
+}
+
+#fs {
+    width: 100%;
+    inset: 0;
+}
+
+#ifs {
+    // Override width/height to be 100% instead of 100v[wh].
+    height: 100%;
+};