v0.4.0

What's new\n\n- Per-app icons: Message cards now display the icon uploaded to each Gotify application, falling back to a bell icon when none is set.\n\n## Installation\n\n1. Download the XPI from the assets below\n2. In Firefox/LibreWolf: about:config, set xpinstall.signatures.required = false\n3. about:addons, gear icon, Install Add-on From File\n4. After installing, find the extension UUID in about:debugging and add it to your Gotify config under GOTIFY_SERVER_STREAM_ALLOWEDORIGINS and GOTIFY_SERVER_CORS_ALLOWORIGINS