fix sonarqube bugs

Author: razvanMiu

src/Widgets/Slider.jsx

@@ -84,8 +84,11 @@ export class Slider extends Component {
         this.setValue(val, triggeredByUser, i);
         positions[i] = this.determinePosition(val);
       });
-      this.setState({
-        position: positions,
+      this.setState((prevState) => {
+        const positions = [...prevState.position];
+        return {
+          position: positions,
+        };
       });
     } else {
       this.setValue(value, triggeredByUser);
@@ -211,11 +214,13 @@ export class Slider extends Component {
 
   setValuePosition(value, triggeredByUser, knobIndex) {
     if (this.props.multiple) {
-      const positions = [...this.state.position];
-      positions[knobIndex] = this.determinePosition(value);
       this.setValue(value, triggeredByUser, knobIndex);
-      this.setState({
-        position: positions,
+      this.setState((prevState) => {
+        const positions = [...prevState.position];
+        positions[knobIndex] = this.determinePosition(value);
+        return {
+          position: positions,
+        };
       });
     } else {
       this.setValue(value, triggeredByUser);
@@ -227,10 +232,12 @@ export class Slider extends Component {
 
   setPosition(position, knobIndex) {
     if (this.props.multiple) {
-      const newPosition = [...this.state.position];
-      newPosition[knobIndex] = position;
-      this.setState({
-        position: newPosition,
+      this.setState((prevState) => {
+        const newPosition = [...prevState.position];
+        newPosition[knobIndex] = position;
+        return {
+          position: newPosition,
+        };
       });
     } else {
       this.setState({