Fix overflow issues when bounds min or max is set to T min or max

src/widgets/number_input.rs

@@ -235,17 +235,18 @@ where
 
  /// Decrease current value by step of the [`NumberInput`].
  fn decrease_val(&mut self, shell: &mut Shell<Message>) {
- if self.bounds.1 - self.bounds.0 < self.step || self.value < self.bounds.0 + self.step {
+ if self.value < self.bounds.0 + self.step {
  self.value = self.bounds.0;
  } else {
  self.value -= self.step;
  }
+
  shell.publish((self.on_change)(self.value));
  }
 
  /// Increase current value by step of the [`NumberInput`].
  fn increase_val(&mut self, shell: &mut Shell<Message>) {
- if self.bounds.1 - self.bounds.0 < self.step || self.value > self.bounds.1 - self.step {
+ if self.value > self.bounds.1 - self.step {
  self.value = self.bounds.1;
  } else {
  self.value += self.step;