Improvements:

• Use clamp function to calculate left, top and bright values. (#156)
• Improve Accessibility:
  • add aria-labelledby to all input elements (closes #160 )
  • fix wrong aria rules
  • pass the the accessibility audits in Chrome DevTools
• Allow to customize labels in favor of i18n (closes #160 )

<!-- now `EditableInput` can accept `label-text` for customizing label text. -->
<EditableInput label-text="Textes shows in input label" label="hex" v-model="color.hex" @change="onChange" />