Fix HACS/Hassfest validation errors

- Sort manifest keys alphabetically (hassfest requirement)
- Add issue_tracker to manifest (HACS requirement)
- Remove unsupported icon key from hacs.json

Author: SurfHost

custom_components/infrared_remote/manifest.json

@@ -1,11 +1,12 @@
 {
   "domain": "infrared_remote",
   "name": "Infrared Remote",
-  "version": "0.7.0",
-  "documentation": "https://github.com/SurfHost/ha-infrared-remote",
-  "dependencies": ["infrared"],
   "codeowners": ["@SurfHost"],
   "config_flow": true,
+  "dependencies": ["infrared"],
+  "documentation": "https://github.com/SurfHost/ha-infrared-remote",
+  "integration_type": "device",
   "iot_class": "local_push",
-  "integration_type": "device"
+  "issue_tracker": "https://github.com/SurfHost/ha-infrared-remote/issues",
+  "version": "0.7.0"
 }

hacs.json

@@ -1,6 +1,5 @@
 {
   "name": "Infrared Remote",
   "render_readme": true,
-  "homeassistant": "2026.4.0",
-  "icon": "https://raw.githubusercontent.com/SurfHost/ha-infrared-remote/main/custom_components/infrared_remote/brand/icon.png"
+  "homeassistant": "2026.4.0"
 }