Header Cleanup (#707)

- Use :host as the CSS Grid container instead of a wrapper <div>, removing unnecessary DOM nesting
- Untrack settings.shared.json (already in .gitignore, was committed before the rule was added)
- Add default HeaderBarSettings to settings.json (disabled, UNCLASSIFIED)

Author: sei-aschlackman

src/app/app.component.html

@@ -3,10 +3,8 @@
 Released under a MIT (SEI)-style license. See LICENSE.md in the project root for license information.
 -->
 
-<div class="app-layout">
-  <comn-header-bar></comn-header-bar>
+<comn-header-bar></comn-header-bar>
 
-  <main class="main-content">
-    <router-outlet></router-outlet>
-  </main>
-</div>
+<main class="main-content">
+  <router-outlet></router-outlet>
+</main>

src/app/app.component.scss

@@ -1,7 +1,7 @@
 // Copyright 2021 Carnegie Mellon University. All Rights Reserved.
 // Released under a MIT (SEI)-style license. See LICENSE.md in the project root for license information.
 
-.app-layout {
+:host {
   display: grid;
   grid-template-rows: auto 1fr;
   height: 100vh;

src/assets/config/settings.json

@@ -22,5 +22,15 @@
   "AppTopBarHexColor": "#3B62A5",
   "AppTopBarHexTextColor": "#FFFFFF",
   "UseLocalAuthStorage": false,
-  "DebugLogging": false
+  "DebugLogging": false,
+  "HeaderBarSettings": {
+    "banner_background_color": "#007a33ff",
+    "classification_text": "UNCLASSIFIED",
+    "classification_text_color": "#ffffff",
+    "classification_text_fontsize": "14",
+    "message_text": "Maintenance Message",
+    "message_text_color": "#ffff00",
+    "message_text_fontsize": "14",
+    "enabled": false
+  }
 }