Add i18n support for "Normal" value in speed options

src/js/controls.js

@@ -511,7 +511,7 @@ const controls = {
     getLabel(setting, value) {
         switch (setting) {
             case 'speed':
-                return value === 1 ? 'Normal' : `${value}×`;
+                return value === 1 ? i18n.get('normal', this.config) : `${value}×`;
 
             case 'quality':
                 if (utils.is.number(value)) {

src/js/defaults.js

@@ -177,6 +177,7 @@ const defaults = {
         captions: 'Captions',
         settings: 'Settings',
         speed: 'Speed',
+        normal: 'Normal',
         quality: 'Quality',
         loop: 'Loop',
         start: 'Start',