Move help links from the global header onto each relevant card

The single header-wide help icon (added last release) pointed at a
per-page doc guess, but a page can have several cards covering different
topics. Removed it and added a small help icon directly to each card
that has real corresponding doc content, linking straight to that doc:
Proxy List + Add/Edit host modal (hosts.ejs), Add DNS Provider + Dynamic
A Records (dns.ejs), Add New User + User List (users.ejs), Add
Permission + Permissions (permissions.ejs), Add Group (groups.ejs).

Bumps to v1.1.11.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KDEx8ghuZR61pqPXc6da9C

nodejs/views/hosts.ejs

@@ -394,6 +394,7 @@
 				<span class="card-icon me-2"><i class="fa-solid fa-network-wired"></i></span>
 				<span class="card-title fw-bold">Proxy List</span>
 				<span class="ms-auto">
+					<a href="/docs/installation" class="text-reset me-2" title="Help"><i class="fa-solid fa-circle-question"></i></a>
 					<button type="button" class="btn btn-sm btn-outline-secondary me-2" onclick="hostClearCache(this)" title="Clear cached wildcard subdomain lookups">
 						<i class="fa-solid fa-broom"></i>
 						Clear cache
@@ -527,6 +528,7 @@
 		<div class="modal-content card border-0">
 			<div class="modal-header">
 				<h5 class="modal-title" id="hostModalTitle">Add host</h5>
+				<a href="/docs/installation" class="text-reset me-2" title="Help"><i class="fa-solid fa-circle-question"></i></a>
 				<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
 			</div>