Use a generic instead of Any in MenuHelper (#3574)

This commit also removes an unused _get_table_header method.

archinstall/lib/menu/menu_helper.py

@@ -1,13 +1,11 @@
-from typing import Any
-
 from archinstall.lib.output import FormattedOutput
 from archinstall.tui.menu_item import MenuItem, MenuItemGroup
 
 
-class MenuHelper:
+class MenuHelper[ValueT]:
 	def __init__(
 		self,
-		data: list[Any],
+		data: list[ValueT],
 		additional_options: list[str] = [],
 	) -> None:
 		self._separator = ''
@@ -30,12 +28,8 @@ class MenuHelper:
 
 		return group
 
-	def _get_table_header(self, data_formatted: dict[str, Any]) -> list[str]:
+	def _table_to_data_mapping(self, data: list[ValueT]) -> dict[str, ValueT | str | None]:
-		table_header = [key for key, val in data_formatted.items() if val is None]
+		display_data: dict[str, ValueT | str | None] = {}
-		return table_header
-
-	def _table_to_data_mapping(self, data: list[Any]) -> dict[str, Any | None]:
-		display_data: dict[str, Any | None] = {}
 
 		if data:
 			table = FormattedOutput.as_table(data)