Set content width to avoid overflow (Fix #1853)

dist/vis.js

@@ -22462,6 +22462,7 @@ return /******/ (function(modules) { // webpackBootstrap
           this.dom.content.style.right = contentStartPosition + 'px';
         } else {
           this.dom.content.style.left = contentStartPosition + 'px';
+          this.dom.content.style.width = 'calc(100% - ' + contentStartPosition + 'px)';
         }
     }
   };

lib/timeline/component/item/RangeItem.js

@@ -259,6 +259,7 @@ RangeItem.prototype.repositionX = function(limitSize) {
         this.dom.content.style.right = contentStartPosition + 'px';
       } else {
         this.dom.content.style.left = contentStartPosition + 'px';
+        this.dom.content.style.width = 'calc(100% - ' + contentStartPosition + 'px)';
       }
   }
 };