Gh pages deploy fix (#5669)

* fix(app):redirect after 404

* fix(app):docs building script

* fix(app):add gulpfile for docs

* fix(app): directory splitting

* fix(app): build docs script

* fix(app): build docs script

* fix(app): build docs script

* fix(app): relative path for scss

* fix(app): relative path for scss

* fix(app): relative path for scss

* fix(app):fix footer icons

* fix(app):fix footer icons

* fix(app):fix footer icons

* fix(app):config

* fix(app):remove small-social

* fix(docs): footer icons style

* fix(docs): material page index file

* fix(docs): descriptions and keyword

* fix(docs): og description

* fix(docs): og description and title

* fix(docs): dem,o branch url

* fix(docs): dynamic title for docs page

* fix(docs): remove unused script

* fix(docs): static title

Co-authored-by: Evgeny Lupanov <e.lupanov@akveo.com>

docs/app/pages/docs/page/ngx-admin-landing-page.component.ts

@@ -63,7 +63,6 @@ export class NgxAdminLandingPageComponent implements OnDestroy, OnInit {
         }),
         filter(item => item),
         tap((item: any) => {
-          this.metaDataService.updateTitle(`Nebular - ${item.name}`);
           this.metaDataService.updateDescription(item.description);
         }),
         publishReplay(),