Merged PR 212: Optimize FindChildrenById from O(n) to O(1)

Optimize FindChildrenById from O(n) to O(1):
- Deprecate FindContainerByIdDFS
- Container: Replace Children to string[]
- Add HashMap to IHistoryState that contains all containers

To access a container by id now cost O(1) without any additional cost

+ Implement CICD for SVGLibs

src/Components/UI/UI.tsx

@@ -18,6 +18,7 @@ import { Settings } from '../Settings/Settings';
 import { IMessage } from '../../Interfaces/IMessage';
 import { DISABLE_API } from '../../utils/default';
 import { UseWorker, UseAsync } from './UseWorker';
+import { FindContainerById } from '../../utils/itertools';
 
 export interface IUIProps {
   selectedContainer: IContainerModel | undefined
@@ -89,6 +90,12 @@ export function UI(props: IUIProps): JSX.Element {
   let leftChildren: JSX.Element = (<></>);
   let rightChildren: JSX.Element = (<></>);
 
+  const mainContainer = FindContainerById(props.current.containers, props.current.mainContainer)
+
+  if (mainContainer === undefined) {
+    throw new Error('Tried to initialized UI but there is no main container!');
+  }
+
   switch (selectedSidebar) {
     case SidebarType.Components:
       leftSidebarTitle = 'Components';
@@ -100,7 +107,8 @@ export function UI(props: IUIProps): JSX.Element {
       />;
       rightSidebarTitle = 'Elements';
       rightChildren = <ElementsList
-        mainContainer={props.current.mainContainer}
+        containers={props.current.containers}
+        mainContainer={mainContainer}
         symbols={props.current.symbols}
         selectedContainer={props.selectedContainer}
         onPropertyChange={props.onPropertyChange}