message: refactor: use angle bracket invocation in project-contributors component
diff: -<div class='col-xs-12 col-md-5' local-class='col-division-right'>
  - {{project-contributors/search
  - node=this.node
  - contributors=this.contributors
  - onAddContributor=(action this.reloadContributors)
  - }}
  +<div
  + class='col-xs-12 col-md-5'
  + local-class='col-division-right'
  +>
  + <ProjectContributors::Search
  + @node={{@node}}
  + @contributors={{@contributors}}
  + @onAddContributor={{action this.reloadContributors}}
  + />
  </div>
  <div class='col-xs-12 col-md-7'>
  - <h2 local-class='inline'>{{t 'app_components.project_contributors.title'}}</h2>
  - {{#fa-icon 'question-circle'}}
  - {{#bs-popover
  - placement='bottom'
  - triggerEvents='hover'
  - title=(t 'app_components.project_contributors.contributors_popover_title')
  - }}
  + <h2 local-class='inline'>
  + {{t 'app_components.project_contributors.title'}}
  + </h2>
  + <FaIcon @icon='question-circle'>
  + <BsPopover
  + @placement='bottom'
  + @triggerEvents='hover'
  + @title={{t 'app_components.project_contributors.contributors_popover_title'}}
  + >
  {{t 'app_components.project_contributors.contributors_popover'}}
  - {{/bs-popover}}
  - {{/fa-icon}}
  - <p>{{t 'app_components.project_contributors.instructions'}}</p>
  - {{project-contributors/list
  - node=this.node
  - bindReload=(action (mut this.reloadContributorsList))
  - }}
  + </BsPopover>
  + </FaIcon>
  + <p>
  + {{t 'app_components.project_contributors.instructions'}}
  + </p>
  + <ProjectContributors::List
  + @node={{this.node}}
  + @bindReload={{action (mut this.reloadContributorsList)}}
  + />
  </div>
  -{{submit-section-buttons
  - showDiscard=false
  - discard=this.discard
  - continue=this.continue
  - continueButtonLabel=(t 'app_components.submit_section.continue')
  -}}
  +<SubmitSectionButtons
  + @showDiscard={{false}}
  + @discard={{this.discard}}
  + @continue={{this.continue}}
  + @continueButtonLabel={{t 'app_components.submit_section.continue'}}
  +/>
  