fix(fn signature): remove return types from function signatures

src/controller/controller.rs

@@ -1,7 +1,7 @@
 use gtk::*;
 use gtk4 as gtk;
 
-pub fn state_controller(switch: &Switch, label: &Label) -> () {
+pub fn state_controller(switch: &Switch, label: &Label) {
     if switch.state() {
         label.set_label("Режим: проверка");
     } else {

src/controller/event_handlers/button_event_handlers.rs

@@ -13,7 +13,7 @@ where
 }
 
 pub trait BtnEventHandler {
-    fn on_click(self) -> ();
+    fn on_click(self);
 }
 
 impl<F, C> BtnEventHandler for EventHandler<F, C>
@@ -21,7 +21,7 @@ where
     F: Fn(&C) + FnOnce(&C) + FnMut(&C) + 'static,
     C: ButtonExt + WidgetExt,
 {
-    fn on_click(self) -> () {
+    fn on_click(self) {
         self.component
             .connect_clicked(move |button| (self.callback)(button));
     }

src/controller/event_handlers/switch_event_handlers.rs

@@ -1,7 +1,7 @@
 use crate::{gtk::prelude::*, model::models::*, view::components::switch::SwitchExt};
 
 pub trait SwEventHandler {
-    fn on_toggle(self) -> ();
+    fn on_toggle(self);
 }
 
 impl<F, C> SwEventHandler for EventHandler<F, C>
@@ -9,7 +9,7 @@ where
     F: Fn(&C) + FnOnce(&C) + FnMut(&C) + 'static,
     C: SwitchExt + WidgetExt,
 {
-    fn on_toggle(self) -> () {
+    fn on_toggle(self) {
         self.component
             .connect_state_notify(move |switch| (self.callback)(switch));
     }