added cosmic for a desktop (#2615)

* cosmic is out of the aur

archinstall/default_profiles/desktops/cosmic.py

@@ -0,0 +1,21 @@
+from typing import List, Optional, Any, TYPE_CHECKING
+
+from archinstall.default_profiles.profile import ProfileType, GreeterType
+from archinstall.default_profiles.xorg import XorgProfile
+
+if TYPE_CHECKING:
+	_: Any
+
+class CosmicProfile(XorgProfile):
+	def __init__(self):
+		super().__init__('cosmic-epoch', ProfileType.DesktopEnv, description='')
+
+	@property
+	def packages(self) -> List[str]:
+		return [
+			"cosmic",
+		]
+
+	@property
+	def default_greeter_type(self) -> Optional[GreeterType]:
+		return GreeterType.CosmicSession

archinstall/default_profiles/profile.py

@@ -33,7 +33,7 @@ class GreeterType(Enum):
 	Sddm = 'sddm'
 	Gdm = 'gdm'
 	Ly = 'ly'
-
+	CosmicSession = "cosmic-greeter"
 
 class SelectResult(Enum):
 	NewSelection = auto()