[WIP] optimize: input and textarea

[ChrisCindy]

• fix: maxlength attribute not work

<input maxlength="5" />

• fix: maxLength property not work

const input = document.createElement('input');
input.maxLength = 5;

• feat: support keyup and keydown event

const input = document.createElement('input');
input.addEventListener('keyup', function (e) {
  console.log(e.code);
  console.log(e.key);
});

• fix: vertical align is not centered for placeholder and text in input
• feat: support selectionStart and selectionEnd

const input = document.querySelector('input')
input.value = '12345';
input.selectionStart = 1;
input.selectionEnd = 3;
input.focus();

• feat: hide counter when set maxlength
• fix: set disabled attribute is invalid

<input disabled />

• feat: support enterkeyhint and inputmode

• feat: update get keyboard type

• refactor: make checkbox and radio default style more dense

  <div>
    <input type="checkbox" id="horns" name="horns" />
    <label for="horns">Horns</label>
  </div>

• refactor: finish radio and checkbox element and its property/attribute management