constants.py: Load icons from relative resources

Resolves issues with icons failing to load on macOS download UI

CHANGELOG.md

@@ -8,6 +8,8 @@
 - Add new Launch Daemon for clean up on macOS updates
   - Resolves KDKless Macs failing to boot after updating from 14.0 to 14.x
   - `/Library/LaunchDaemons/com.dortania.opencore-legacy-patcher.macos-update.plist`
+- Load UI icons from local path
+  - Resolves macOS downloader crash on slower machines
 - Remove News Widget removal from Control Centre
   - News Widget no longer crashes on 3802-based GPUs
 - Resolve i210 NIC support for macOS Sonoma

resources/constants.py

@@ -707,6 +707,13 @@ class Constants:
         return self.payload_path / Path("Tools/RSRRepair")
 
     # Icons
+    @property
+    def icns_resource_path(self):
+        if self.launcher_script:
+            return self.payload_path / Path("Icon/AppIcons")
+        return Path(self.launcher_binary).parent.parent / Path("Resources")
+
+
     @property
     def app_icon_path(self):
         return self.payload_path / Path("OC-Patcher.icns")
@@ -729,23 +736,23 @@ class Constants:
 
     @property
     def icon_path_macos_generic(self):
-        return self.payload_path / Path("Icon/AppIcons/Generic.icns")
+        return self.icns_resource_path / Path("Generic.icns")
 
     @property
     def icon_path_macos_big_sur(self):
-        return self.payload_path / Path("Icon/AppIcons/BigSur.icns")
+        return self.icns_resource_path / Path("BigSur.icns")
 
     @property
     def icon_path_macos_monterey(self):
-        return self.payload_path / Path("Icon/AppIcons/Monterey.icns")
+        return self.icns_resource_path / Path("Monterey.icns")
 
     @property
     def icon_path_macos_ventura(self):
-        return self.payload_path / Path("Icon/AppIcons/Ventura.icns")
+        return self.icns_resource_path / Path("Ventura.icns")
 
     @property
     def icon_path_macos_sonoma(self):
-        return self.payload_path / Path("Icon/AppIcons/Sonoma.icns")
+        return self.icns_resource_path / Path("Sonoma.icns")
 
     @property
     def gui_path(self):
@@ -768,13 +775,6 @@ class Constants:
     def kdk_download_path(self):
         return self.payload_path / Path("KDK.dmg")
 
-    @property
-    def icns_resource_path(self):
-        if self.launcher_script:
-            return self.payload_path / Path("Icon/AppIcons")
-        return Path(self.launcher_binary).parent.parent / Path("Resources")
-
-
     @property
     def icons_path(self):
         return [