feat: add SEO descriptions to all pages and fix canonical URL

content/3.serveex/4.monitoring/1.uptime-kuma.md

@@ -1,6 +1,7 @@
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 navigation: true
 title: Uptime-Kuma
+description: Install Uptime-Kuma to monitor your self-hosted services uptime, set up alerts, and optionally protect the dashboard with Authentik.
 main:
   fluid: false
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content/3.serveex/4.monitoring/2.dozzle.md

@@ -1,6 +1,7 @@
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 navigation: true
 title: Dozzle
+description: Install Dozzle to monitor Docker container logs in real time from a clean web interface, exposed via SWAG.
 main:
   fluid: false
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content/3.serveex/4.monitoring/3.speedtest-tracker.md

@@ -1,6 +1,7 @@
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 navigation: true
 title: Speedtest Tracker
+description: Install Speedtest Tracker to automatically measure and log your internet connection speed over time, exposed with SWAG.
 main:
   fluid: false
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content/3.serveex/4.monitoring/4.beszel.md

@@ -1,6 +1,7 @@
 --- 
 navigation: true
 title: Beszel
+description: Install Beszel to monitor server CPU, RAM, disk, and network metrics — including remote servers — with a lightweight web dashboard.
 main:
   fluid: false
 ---

content/3.serveex/4.monitoring/5.upsnap.md

@@ -1,6 +1,7 @@
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 navigation: true
 title: UpSnap
+description: Install UpSnap to remotely wake up machines on your local network via Wake-on-LAN, exposed with SWAG.
 main:
   fluid: false
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