EGO-L-003 warning

signals connected by extension should be disconnected in disable()

Signals assigned in `enable()` are missing matching disconnect calls in `disable()` or its helper methods.

Disconnect all signals

• extension.js:40

  this._searchEntry.clutter_text.connect('text-changed', this._onSearchTextChanged.bind(this))

• extension.js:118

              this.menu.connect('open-state-changed', (menu, open) => {
                  if (open) {
                      this._populateApps('');
                      global.stage.set_key_focus(this._searchEntry);
                  } else {
                      this._searchEntry.set_text('');