Add trips

slices/admin/templates/shared/_post.html.slim

@@ -0,0 +1,15 @@
+div class="mb-8 h-entry"
+  - if !added
+    button class="text-blue-600" hx-post="/admin/trips/add_post" hx-vals='{"trip_id": "#{trip_id}", "post_id": "#{post.id}"}'
+      = "Add to trip"
+  h3 class="text-xl font-semibold text-blue-600 mb-2"
+    a class="border-b-2 border-transparent hover:border-blue-600 hover:border-b-2" href="/post/#{post.slug}"
+      == post.content
+  div class="e-content prose-p:mb-0 prose-img:my-2 prose-a:text-blue-600 prose-a:no-underline hover:prose-a:underline p-name text-base prose prose-ul:list-none prose-ul:pl-0 prose-li:pl-0 text-gray-800 dark:text-gray-200 prose-a:dark:text-gray-100"
+    div class="grid gap-4 grid-flow-row grid-cols-4 grid-rows-1"
+      -post.photos.each do |photo|
+        img class="w-44 h-44 object-cover rounded" src=photo["value"]
+
+  p class="text-sm text-blue-400"
+    a href="/post/#{post.slug}"
+      = post.published_at