🌐 Use locale throughout layouts

src/components/Timeline.jsx

@@ -341,6 +341,7 @@ class Timeline extends React.Component {
                 onDragEnd={() => { this.onDragEnd() }}
                 categories={categories.map(c => c.id)}
                 features={this.props.features}
+                fallbackLabel={copy[this.props.app.language].timeline.default_categories_label}
               />
               <Handles
                 dims={dims}

src/components/TimelineCategories.jsx

@@ -51,11 +51,11 @@ class TimelineCategories extends React.Component {
   }
 
   render () {
-    const { dims, categories } = this.props
+    const { dims, categories, fallbackLabel } = this.props
     const categoriesExist = categories && categories.length > 0
     const renderedCategories = categoriesExist
       ? this.props.categories.map((cat, idx) => this.renderCategory(cat, idx))
-      : this.renderCategory('Events', 0)
+      : this.renderCategory(fallbackLabel, 0)
 
     return (
       <g class='yAxis'>