register.blade.php

<div class="form-group row">
  <label for="username" class="col-md-4 col-form-label text-md-right">{{ __('Username') }}</label>
  <div class="col-md-6">
    <input id="username" type="text" class="form-control @error('username') is-invalid @enderror" name="username" value="{{ old('username') }}" required autocomplete="username" autofocus>

    @error('username')
      <span class="invalid-feedback" role="alert">
        <strong>{{ $message }}</strong>
      </span>
    @enderror
  </div>
</div>

<div class="form-group row">
  <label for="email" class="col-md-4 col-form-label text-md-right">{{ __('E-Mail Address') }}</label>
  <div class="col-md-6">
    <input id="email" type="email" class="form-control @error('email') is-invalid @enderror" name="email" value="{{ $invite->email }}" required readonly>
    @error('email')
      <span class="invalid-feedback" role="alert">
        <strong>{{ $message }}</strong>
      </span>
    @enderror
  </div>
</div>