changed focus methods

[bunsenstraat]

the focus method is exposed through the plugin, so I added the super method so we can actually use it. Before that, on the side panel it was only used to emit an event that triggered highlighting being cleared or something. Let's discuss.

[yann300]

what action does the super.focus?

[bunsenstraat]

what action does the super.focus?

  showContent (name) {
    if (!this.contents[name]) throw new Error(`Plugin ${name} is not yet activated`)
    // hiding the current view and display the `moduleName`
    if (this.active) {
      this.contents[this.active].style.display = 'none'
    }
    this.contents[name].style.display = 'flex'
    this.active = name
  }

  focus (name) {
    this.showContent(name)
  }

on panel