Add Kener entry to meta.json and improve JSON encoding in TemplateDialog (#229)

* Add Kener entry to meta.json and improve JSON encoding in TemplateDialog

- Introduced Kener, an open-source status page system, to meta.json with relevant links and tags.
- Updated TemplateDialog to use encodeURIComponent for proper handling of Unicode characters in JSON encoding.
- Removed unnecessary console log from TemplateGrid for cleaner code.

* Update Kener logo in meta.json and remove old logo file

- Changed the logo reference for Kener in meta.json from 'kener.png' to 'image.png'.
- Deleted the outdated 'kener.png' file from the repository.

* Add GitLab CE entry to meta.json

- Introduced GitLab Community Edition with a detailed description, logo, and relevant links.
- Updated tags for better categorization, including 'git', 'ci-cd', 'version-control', and 'project-management'.

meta.json

@@ -2571,6 +2571,19 @@
     },
     "tags": ["link-shortener", "link-sharing"]
   },
+  {
+    "id": "kener",
+    "name": "Kener",
+    "version": "latest",
+    "description": "Kener is an open-source status page system for monitoring and alerting. It provides a modern interface for tracking service uptime and sending notifications.",
+    "logo": "image.png",
+    "links": {
+      "github": "https://github.com/rajnandan1/kener",
+      "website": "https://kener.ing/",
+      "docs": "https://kener.ing/docs/"
+    },
+    "tags": ["monitoring", "status-page", "alerting", "self-hosted"]
+  },
   {
     "id": "palmr",
     "name": "Palmr",