When Search Box By Click is "disabled" it's button should be disabled as well

When the search box is disabled, the button should become disabled and @submit event should not be run.

<gl-search-box-by-click
  ...
  v-model.trim="searchQuery"
  :disabled="true"
  @submit="setSearch(searchQuery)"
/>

Example:

Related pajamas documentation https://design.gitlab.com/components/search#search-by-confirmation