keybindingFromKey(key) {
          let combo = '';
          combo = key.toLowerCase();
          combo = combo.slice(0, 1) + ' ' + combo.slice(1, 2);
          return combo;
        }
/**
         * Given an applet key (case-insensitive) return the corresponding Mousetrap keybinding
         * for navigating to the applet's home page
         * @param {string} key Applet "key" (unique 2 character ID string)
         */
Given an applet key (case-insensitive) return the corresponding Mousetrap keybinding
for navigating to the applet's home page
@param {string} key Applet "key" (unique 2 character ID string)
Given an applet key ( case - insensitive ) return the corresponding Mousetrap keybinding for navigating to the applet ' s home page @param { string } key Applet " key " ( unique 2 character ID string )
keybindingFromKey(key) {
          let combo = '';
          combo = key.toLowerCase();
          combo = combo.slice(0, 1) + ' ' + combo.slice(1, 2);
          return combo;
        }
keybindingFromKey ( key ) { let combo = '' ; combo = key . toLowerCase ( ) ; combo = combo . slice ( 0 , 1 ) + ' ' + combo . slice ( 1 , 2 ) ; return combo ; }
Given an applet key (case-insensitive) return the corresponding Mousetrap keybinding
 for navigating to the applet's home page
 @param {string} key Applet "key" (unique 2 character ID string)
Given an applet key ( case - insensitive ) return the corresponding Mousetrap keybinding for navigating to the applet ' s home page @param { string } key Applet " key " ( unique 2 character ID string )