Merged PR 225: Implement translations

Implement translations with useContext in React
+Add events to allow changing the language in the app
+Refactor AppEvents
+Redesign vertical bars in elements

src/utils/default.ts

@@ -17,6 +17,8 @@ export const FAST_BOOT = true;
 /** Disable any call to the API (default = false) */
 export const DISABLE_API = false;
 
+export const DEFAULT_LANGUAGE = 'fr';
+
 /**
  * Replace the SVG viewer by a canvas
  * Better compatibility with Gecko and WebKit engines like Firefox and Safari.