fix: fix the aftermath of changing EnumPropHelper.

- fix the generic error of EnumPropHelper.
- use EnumPropHelper in UTIL_ioport_shared.ExportParams field instead of raw Blender string.
- remove useless type hint in various modules.

bbp_ng/OP_OBJECT_legacy_align.py

@@ -15,7 +15,7 @@ _g_AlignModeDesc: dict[AlignMode, tuple[str, str]] = {
     AlignMode.AxisCenter: ("Center (Axis)", "The object's source point in specified axis."),
     AlignMode.Max: ("Max", "The max value in specified axis."),
 }
-_g_EnumHelper_AlignMode: UTIL_functions.EnumPropHelper = UTIL_functions.EnumPropHelper(
+_g_EnumHelper_AlignMode = UTIL_functions.EnumPropHelper(
     AlignMode,
     lambda x: str(x.value),
     lambda x: AlignMode(int(x)),