Remove not required SharedService class

[alexmt]

Removing SharedService since it does nothing. There is no need to notify Layout component about layout settings update since it is done by angular itself.

[wokeGit]

LayoutSettings is not working correct in this scenario.
To reproduce a bug I found:
Please go to Users -> select yourself account, you will be redirected to your profile screen -> click the action button. Here you can see two options at the dropdown:

It's a bug, you shouldn't be able to "Grant Admin Access".
What's more, you can click "user profile" then cancel it and now the "Grant Admin Access" action is not available.

If we can use Layout setting like this:

    get layoutSettings(): LayoutSettings {
        return this;
    }

    get globalAddActionMenu() {
        return this.utils.getActionMenu(this.user, item => this.editUserProfile(item.username));
    }

    get pageTitle(): string {
        return 'Profile';
    };

    get breadcrumb(): { title: string, routerLink: any[] }[] {
        return [{
            title: 'All Users',
            routerLink: [`/app/user-management/overview`]
        }, {
            title: this.username,
            routerLink: null,
        }];
    }

I know we were discussing to not use LayoutSettings this way but looks like in this particular scenario it works.
@alexmt Please let me know if you have better idea for this issue.

Don't know if described issue is good place to mention it here. But SharedService was created to resolve ie. this issue.
@alexmt Let me know if I should create separate issue for that.
Everything other looks good to me, thank you for removing SharedService.

[alexmt]

Thank you for explanation @wokeGit ! Now I understand why SharedService was created. I've updated LayoutComponent so layout setting might be changed after navigation end event: f2167b6

Please take a look

[wokeGit]

Nice!
LGTM