fixed scaling issues for combobox and optionemnu, chatched error in appearance_mode_tracker

test/manual_integration_tests/test_textbox.py

@@ -0,0 +1,11 @@
+import customtkinter
+
+app = customtkinter.CTk()
+app.grid_rowconfigure(0, weight=1)
+app.grid_columnconfigure(0, weight=1)
+
+textbox = customtkinter.CTkTextbox(app)
+textbox.grid(row=0, column=0, padx=20, pady=20, sticky="nsew")
+
+
+app.mainloop()