Deprecation warnings

[anderejd]

Electron Deprecation Warning (nodeIntegration default change) This window has node integration enabled by default. In Electron 5.0.0, node integration will be disabled by default. To prepare for this change, set {nodeIntegration: true} in the webPreferences for this window, or ensure that this window does not rely on node integration and set {nodeIntegration: false}.

Electron Deprecation Warning (contextIsolation default change) This window has context isolation disabled by default. In Electron 5.0.0, context isolation will be enabled by default. To prepare for this change, set {contextIsolation: false} in the webPreferences for this window, or ensure that this window does not rely on context isolation being disabled, and set {contextIsolation: true}.

For more information, see https://electronjs.org/docs/tutorial/security#3-enable-context-isolation-for-remote-content