Improve index tables and improved consistency (#97)

* Simplifies index pages

* Improved UX of more pages

lib/pinchflat_web/controllers/sources/source_html/edit.html.heex

@@ -2,7 +2,9 @@
   <.link href={~p"/sources"}>
     <.icon name="hero-arrow-left" class="w-10 h-10 hover:dark:text-white" />
   </.link>
-  <h2 class="text-title-md2 font-bold text-black dark:text-white ml-4">Edit Source</h2>
+  <h2 class="text-title-md2 font-bold text-black dark:text-white ml-4">
+    Editing "<%= @source.custom_name %>"
+  </h2>
 </div>
 
 <div class="rounded-sm border border-stroke bg-white px-5 pb-2.5 pt-6 shadow-default dark:border-strokedark dark:bg-boxdark sm:px-7.5 xl:pb-1">