Minor improvements and fixes

• Improved error exceptions and display message
• Added scroll to slide info when text is so large
• Fixed font sizes rescale. Now depends on container width (vh)
• Fixed reload button color when background is transparent
• Updated lodash and elliptic packages for security

Vue app

• Rewritten plugin on Vue.js
• Added appearance options and improved admin configuration
• Parametrized vue app route. Use it just in case of collision.