Add jambotron logo SVG and integrate it into the main component

jambotron-ui/src/app/main-module/main.component/main.component.html

@@ -2,6 +2,7 @@
 
 <mat-toolbar class="fixed-top">
   <button mat-raised-button routerLink="/" href="#">
+    <img ngSrc="jambotron_logo.svg" height="40" width="135">
     My App
   </button>
   <span class="menu-spacer"></span>

jambotron-ui/src/app/main-module/main.component/main.component.ts

@@ -1,6 +1,6 @@
 import {Component, CUSTOM_ELEMENTS_SCHEMA, inject, OnInit} from '@angular/core';
 //import {NavigationComponent} from '../navigation/navigation.component';
-import {NgClass} from '@angular/common';
+import {NgClass, NgOptimizedImage} from '@angular/common';
 import {NavigationComponent} from '../../layouts/admin-layout/navigation/navigation.component';
 import {Router, RouterLink, RouterOutlet} from '@angular/router';
 import {BreadcrumbComponent} from '../../components/breadcrumb/breadcrumb.component';
@@ -31,7 +31,8 @@ import {
     MatButton,
     RouterLink,
     IconDirective,
-    RouterOutlet
+    RouterOutlet,
+    NgOptimizedImage
   ],
   schemas: [ CUSTOM_ELEMENTS_SCHEMA ],
   templateUrl: './main.component.html',