Add email templates for user notifications and account management

- Created a base email template (base.html) for consistent styling across all emails.
- Added moderation approval email template (moderation_approved.html) to notify users of approved submissions.
- Added moderation rejection email template (moderation_rejected.html) to inform users of required changes for their submissions.
- Created password reset email template (password_reset.html) for users requesting to reset their passwords.
- Developed a welcome email template (welcome.html) to greet new users and provide account details and tips for using ThrillWiki.

django/staticfiles/admin/css/dashboard.css

@@ -0,0 +1,29 @@
+/* DASHBOARD */
+.dashboard td, .dashboard th {
+    word-break: break-word;
+}
+
+.dashboard .module table th {
+    width: 100%;
+}
+
+.dashboard .module table td {
+    white-space: nowrap;
+}
+
+.dashboard .module table td a {
+    display: block;
+    padding-right: .6em;
+}
+
+/* RECENT ACTIONS MODULE */
+
+.module ul.actionlist {
+    margin-left: 0;
+}
+
+ul.actionlist li {
+    list-style-type: none;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}