add error page

src/app/components/error/error.component.html

@@ -0,0 +1,18 @@
+<div class="grid flex-column surface-card align-items-center justify-content-center h-screen">
+    <img src="assets/layout/images/logo-error.svg" alt="Sakai logo" class="mb-5" style="width:81px; height:60px;">
+    <div class="col-11 md:col-6" style="border:none; border-radius:56px; padding:0.3rem; background: linear-gradient(180deg, rgba(233, 30, 99, 0.4) 10%, rgba(33, 150, 243, 0) 30%);">
+        <div class="surface-card h-full w-full m-0 py-7 px-4" style="border:none; border-radius:53px;">
+            <div class="grid flex flex-column align-items-center justify-content-center">
+                <div style="border-radius:50%; height:38px; width:38px;" class="flex justify-content-center align-items-center bg-pink-500">
+                    <i class="pi pi-fw pi-exclamation-circle" style="font-size:1.5rem; margin-left:2px; color:#ffffff"></i>
+                </div>
+                <h1 class="font-bold text-5xl text-gray-900 mb-2">Error Occured</h1>
+                <span class="text-gray-600">Requested resource is not available.</span>
+                <img src="assets/layout/images/asset-error.svg" alt="Error" class="mt-5" width="80%">
+                <div class="col-12 mt-5 text-center">
+                    <i class="pi pi-fw pi-arrow-left text-blue-500 mr-2" style="vertical-align:center;"></i><a href="#" class="text-blue-500 pb-2" >Go to Dashboard</a>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>

src/app/components/error/error.component.ts

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+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-error',
+  templateUrl: './error.component.html',
+  styleUrls: ['./error.component.scss']
+})
+export class ErrorComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}