Refactor Editor and module functions (#15)

Moved all module functions to separate utils modules

Replaced standard with standard with typescript

Extracted UI elements to separate component

Reviewed-on: https://git.siklos-chaneru.duckdns.org/Siklos/svg-layout-designer-react/pulls/15

src/Components/Properties/Properties.tsx

@@ -2,12 +2,12 @@ import * as React from 'react';
 import ContainerProperties from '../../Interfaces/Properties';
 
 interface IPropertiesProps {
-  properties?: ContainerProperties,
+  properties?: ContainerProperties
   onChange: (key: string, value: string) => void
 }
 
 export class Properties extends React.PureComponent<IPropertiesProps> {
-  public render() {
+  public render(): JSX.Element {
     if (this.props.properties === undefined) {
       return <div></div>;
     }
@@ -27,7 +27,7 @@ export class Properties extends React.PureComponent<IPropertiesProps> {
   public handleProperties = (
     [key, value]: [string, string | number],
     groupInput: React.ReactNode[]
-  ) => {
+  ): void => {
     const id = `property-${key}`;
     const type = 'text';
     const isDisabled = key === 'id' || key === 'parentId'; // hardcoded