Hide all PiCamera settings if not relevant

<template>

  <div v-if="camera_settings" id="cameraSettings">

    <form @submit.prevent="applyConfigRequest">

      <div v-if="camera_settings.picamera_settings">

        <!--PiCamera settings block-->

        <div v-if="camera_settings.picamera_settings.shutter_speed">

          <label class="uk-form-label" for="form-stacked-text"

            >Exposure time</label

            />

          </div>

        </div>

      </div>

      <button

        type="submit"