docs(web): fix Monitor install and Change Language drift in Settings

web/messages/en/docs/introduction.json

@@ -25,7 +25,7 @@
     },
     "monitor": {
       "title": "ProxMenux Monitor",
-      "body": "Self-hosted web dashboard (AppImage). Real-time host metrics, a proactive Health Monitor, notifications, an optional AI rewrite hook (six providers), an integrated web terminal and a REST API. Enable from the Scripts menu (Settings → ProxMenux Monitor)."
+      "body": "Self-hosted web dashboard (AppImage). Real-time host metrics, a proactive Health Monitor, notifications, an optional AI rewrite hook (six providers), an integrated web terminal and a REST API. The installer sets it up as a service that starts on boot; activate, deactivate or check it from the Scripts menu (Settings → ProxMenux Monitor)."
     },
     "calloutTitle": "What ProxMenux acts on",
     "calloutIntro": "Three layers, all reachable from the same project:",

web/messages/en/docs/settings/index.json

@@ -60,6 +60,12 @@
         "description": "Switch between Stable (main) and Beta (develop) in either direction from a single dialog. Runs the official installer for the chosen channel; idempotent and always visible.",
         "badge": "Always available"
       },
+      {
+        "icon": "Languages",
+        "href": "/docs/settings/change-language",
+        "title": "Change Language",
+        "description": "Switch the ProxMenux interface between eight languages. The choice is saved to config.json and the menu reloads in the new language."
+      },
       {
         "icon": "Info",
         "href": "/docs/settings/show-version-information",

web/messages/en/docs/settings/proxmenux-monitor.json

@@ -33,7 +33,7 @@
   },
   "warnConditional": {
     "title": "Settings options only visible when Monitor is installed",
-    "body": "The two menu entries described below only appear in Settings if <code>proxmenux-monitor.service</code> is registered with systemd. If you don't see them, the Monitor wasn't installed (it's optional during ProxMenux install). To add it later, reinstall ProxMenux with the latest version and pick the Monitor option."
+    "body": "The three menu entries described below only appear in Settings if <code>proxmenux-monitor.service</code> is registered with systemd. The installer always sets it up, so if you don't see them the Monitor step failed during install. Run the official installer again to retry it."
   },
   "toggle": {
     "heading": "Activate / Deactivate",
@@ -92,8 +92,8 @@
   },
   "troubleshoot": {
     "heading": "Troubleshooting",
-    "missingTitle": "Both menu options are missing",
-    "missingBody": "The Monitor isn't registered with systemd. Confirm with <code>systemctl list-unit-files | grep proxmenux-monitor</code> — if there's no output, reinstall ProxMenux from the official installer with the latest version and pick the Monitor option during install.",
+    "missingTitle": "The Monitor menu options are missing",
+    "missingBody": "The Monitor isn't registered with systemd. Confirm with <code>systemctl list-unit-files | grep proxmenux-monitor</code> — if there's no output, run the official installer again; it installs the Monitor on every run.",
     "unreachableTitle": "Service activated but the URL is unreachable",
     "unreachableBody": "The Settings status output gives you the IP. Confirm:",
     "unreachableCmd": "ss -tlnp | grep 8008                # is anything listening?\njournalctl -u proxmenux-monitor -n 100 --no-pager  # recent errors\ncurl -sI http://localhost:8008      # local reachability",

web/messages/en/docs/settings/uninstall-proxmenux.json

@@ -12,7 +12,7 @@
   },
   "scopeWarn": {
     "title": "Affects the ProxMenux install only — not your VMs / CTs / storage",
-    "body": "Uninstalling ProxMenux removes the ProxMenux scripts, the menu launcher, the optional Monitor service and any backups ProxMenux took of system files when you installed it. <strong>It does not touch your VMs, containers, storage, network configuration, Fail2Ban, NVIDIA driver or anything else you installed via ProxMenux.</strong> Those stay as they are."
+    "body": "Uninstalling ProxMenux removes the ProxMenux scripts, the menu launcher, the Monitor service and any backups ProxMenux took of system files when you installed it. <strong>It does not touch your VMs, containers, storage, network configuration, Fail2Ban, NVIDIA driver or anything else you installed via ProxMenux.</strong> Those stay as they are."
   },
   "flow": {
     "heading": "The uninstall flow",