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/mattermost.json

@@ -11,7 +11,7 @@
     "interface_port": 8065,
     "documentation": null,
     "website": "https://mattermost.com/",
-    "logo": "https://raw.githubusercontent.com/selfhst/icons/refs/heads/main/svg/mattermost.svg",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/mattermost.webp",
     "config_path": "/opt/mattermost/config/config.json",
     "description": "Mattermost is an open source platform for secure collaboration across the entire software development lifecycle. It's written in Go and React and runs as a single Linux binary with MySQL or PostgreSQL. It has a slimilar interface and features to Slack or Discord.",
     "install_methods": [
@@ -38,4 +38,3 @@
         }
     ]
 }
-