Add 'New update available' dialog to the electron version (#299)

* build(tsconfig): Rename root tsconfig.json -> tsconfig.base.json

* feat(auto-update): Add update dialog

When new update available than new message will visible of the top of the screen with 2 buttons 'Update' and 'Close'.
- Update button: Update the application (close and restart)
- Close button: Hide the updatePanel

* fix(auto-update): Add types to the event methods

* style: Add comma after SafeStylePipe import

I forgot add the comma when I rebased the branch

* fix(auto-update): Use electron-is-dev package to detect dev build

I removed the isDev() function from the shared util library because it is electron specific code.

* ci: Change osx_image: xcode8.3

Recommended after the last travis upgrade

* feat(auto-update): Add auto update settings page and save config save on electron platform

* ci: Fix osx image

* ci: Upgrade the electron builder -> 19.6.1

The builder now use the 2 package.json structure and build only
the necessary dependencies.

shared/src/components/settings/settings.component.html

@@ -4,4 +4,15 @@
         <span class="macro__name pane-title__name">Settings</span>
     </h1>
 </div>
-To be done...
+<div *ngIf="!runInElectron">
+    To be done...
+</div>
+<auto-update-settings *ngIf="runInElectron"
+                      [version]="version"
+                      [settings]="autoUpdateSettings$ | async"
+                      [checkingForUpdate]="checkingForUpdate$ | async"
+                      [message]="autoUpdateMessage$ | async"
+                      (toggleCheckForUpdateOnStartUp)="toogleCheckForUpdateOnStartUp($event)"
+                      (toggleUsePreReleaseUpdate)="toogleUsePreReleaseUpdate($event)"
+                      (checkForUpdate)="checkForUpdate()">
+</auto-update-settings>