Able Player v5.1.0-beta2

Since 5.1.0-beta1:

• Replace close button with SVG icon instead of multiply sign.
• Added feature parity for Vimeo with synchronized sign language support.
• Add a function that migrates existing settings from the Able-Player cookie to local storage if JS Cookie is not available.
• Don't immediately close the volume slider on any click inside its container.
• Update French translation. Props @DuaelFr.
• Update Slovak translation. Props @rraddatch.
• Update Taiwanese Chinese translation. Props @JediLin.
• Fixed concatenated translated string in seekbar. Props @DuaelFr.