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/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "proxy-api",
-  "version": "1.1.10",
+  "version": "1.1.11",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "proxy-api",
-      "version": "1.1.10",
+      "version": "1.1.11",
       "license": "MIT",
       "dependencies": {
         "@fortawesome/fontawesome-free": "^7.3.0",