Website: harmonize all Logos | use jsDelivr CDN links for icons from selfhst/icons repo (#4603)

* Update jsons

* push

* more

* Switch to CDN

* push new Icons into Branch

* Update dotnetaspwebapi.json

* add proxmox logo

* Update wger.json

* switch to webp

* Update apt-cacher-ng.json

* Update homarr.json

* finalize

* Update sqlserver2022.json

* fixes

* merge

---------

Co-authored-by: tremor021 <arezina.slavisa@gmail.com>
Co-authored-by: Michel Roegl-Brunner <73236783+michelroegl-brunner@users.noreply.github.com>

frontend/public/json/vikunja.json

@@ -11,7 +11,7 @@
     "interface_port": 3456,
     "documentation": null,
     "website": "https://vikunja.io/",
-    "logo": "https://raw.githubusercontent.com/selfhst/icons/refs/heads/main/svg/vikunja.svg",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/vikunja.webp",
     "config_path": "/etc/vikunja/config.yml",
     "description": "Vikunja is a powerful self-hosted todo app. It allows you to create and manage to-do lists. You can plan tasks, set priorities and collaborate with others. The best part is that your data is safe with you and you can customize the app to your liking. It's like a personal assistant that helps you stay organized.",
     "install_methods": [