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/History/History.tsx

@@ -2,19 +2,19 @@ import * as React from 'react';
 import { IHistoryState } from '../../App';
 
 interface IHistoryProps {
-  history: IHistoryState[],
-  historyCurrentStep: number,
-  isOpen: boolean,
-  onClick: () => void,
+  history: IHistoryState[]
+  historyCurrentStep: number
+  isOpen: boolean
+  onClick: () => void
   jumpTo: (move: number) => void
 }
 
 export class History extends React.PureComponent<IHistoryProps> {
-  public render() {
+  public render(): JSX.Element {
     const isOpenClasses = this.props.isOpen ? 'right-0' : '-right-64';
 
     const states = this.props.history.map((step, move) => {
-      const desc = move
+      const desc = move > 0
         ? `Go to modification n°${move}`
         : 'Go to the beginning';