export Color and ImportDict in top-level namespace (#4352)

These are useful for typing purposes and should be exposed at the top level to
avoid requiring deep imports from subpackages that we may need to change later.

reflex/__init__.py

@@ -298,6 +298,7 @@ _MAPPING: dict = {
     "components.moment": ["MomentDelta", "moment"],
     "config": ["Config", "DBConfig"],
     "constants": ["Env"],
+    "constants.colors": ["Color"],
     "event": [
         "EventChain",
         "EventHandler",
@@ -338,7 +339,7 @@ _MAPPING: dict = {
     ],
     "istate.wrappers": ["get_state"],
     "style": ["Style", "toggle_color_mode"],
-    "utils.imports": ["ImportVar"],
+    "utils.imports": ["ImportDict", "ImportVar"],
     "utils.serializers": ["serializer"],
     "vars": ["Var", "field", "Field"],
 }

reflex/__init__.pyi

@@ -152,6 +152,7 @@ from .components.suneditor import editor as editor
 from .config import Config as Config
 from .config import DBConfig as DBConfig
 from .constants import Env as Env
+from .constants.colors import Color as Color
 from .event import EventChain as EventChain
 from .event import EventHandler as EventHandler
 from .event import background as background
@@ -192,6 +193,7 @@ from .state import dynamic as dynamic
 from .state import var as var
 from .style import Style as Style
 from .style import toggle_color_mode as toggle_color_mode
+from .utils.imports import ImportDict as ImportDict
 from .utils.imports import ImportVar as ImportVar
 from .utils.serializers import serializer as serializer
 from .vars import Field as Field