inputmode function
Provides a hint to browsers as to the type of virtual keyboard configuration to use when editing this element or its contents. Used primarily on <input>
elements, but is usable on any element while in [contenteditable](https://developer.mozilla.org/docs/Web/HTML/Global_attributes#attr-contenteditable)
mode.
Implementation
Attribute<GlobalHTMLAttribute> inputmode(String value) {
return Attribute('inputmode', value);
}