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:101

          this._backgroundActor.content.connect('notify::brightness',
              this._updateOpacity.bind(this))

• extension.js:77

          this._settings.connect('changed::logo-always-visible',
              this._updateVisibility.bind(this))

• extension.js:71

          this._settings.connect('changed::logo-border',
              this._updateBorder.bind(this))

• extension.js:63

          this._settings.connect('changed::logo-file-dark',
              this._updateLogo.bind(this))

• extension.js:61

          this._settings.connect('changed::logo-file',
              this._updateLogo.bind(this))

• extension.js:75

          this._settings.connect('changed::logo-opacity',
              this._updateOpacity.bind(this))

• extension.js:69

          this._settings.connect('changed::logo-position',
              this._updatePosition.bind(this))

• extension.js:65

          this._settings.connect('changed::logo-size', () => {
              this._updateScale();
              this.queue_relayout();
          })

• extension.js:79

          this._settings.connect('changed::overview-visible', () => {
              this._settings.get_boolean('overview-visible');
          })

• extension.js:73

          this._settings.connect('changed::y-logo-border',
              this._updateBorder.bind(this))

• extension.js:84

          this._textureCache.connect('texture-file-changed', (cache, file) => {
              if (!this._logoFile || !this._logoFile.equal(file))
                  return;
              this._updateLogoTexture();
          })