Update: Improved UI and functionality of posts and post-edit pages

This change includes both UI and functionality enhancements in 'posts.html' and 'postEdit.html' within the web templates directory. For posts.html, the caption under the table of posts has been replaced with a paragraph tag for better readability. A more comprehensive redesign has been done on postEdit.html, ensuring a more user-friendly page layout with enhanced post edition capabilities. In addition, minor updates were made to the go.sum and go.mod file as a result of new dependencies and versions required by these changes.

adapters/secondary/gateways/web/templates/posts.html

@@ -8,8 +8,8 @@
 {{.Navbar}}
 <div class="container mt-3 text-black-50">
 	<h1>Posts</h1>
+	<p>List of your posts</p>
 	<table class="table table-striped">
-		<caption>List of posts</caption>
 		<thead>
 		</thead>
 		<tbody>