Footer: Single footer component for both react & angular pages (#21389)

* Footer: Single footer implementation for both react & angular pages

* Export type

* Updates

* Use footer links in help menu

* Updates & Fixes

* Updated snapshot

* updated snapshot

public/app/features/admin/partials/admin_home.html

@@ -9,3 +9,4 @@
 
 </div>
 
+<footer />

public/app/features/admin/partials/edit_org.html

@@ -42,3 +42,5 @@
 		</tr>
 	</table>
 </div>
+
+<footer />

public/app/features/admin/partials/edit_user.html

@@ -181,3 +181,5 @@
     </div>
   </div>
 </div>
+
+<footer />

public/app/features/admin/partials/new_user.html

@@ -28,3 +28,5 @@
 		</div>
 	</form>
 </div>
+
+<footer />

public/app/features/admin/partials/orgs.html

@@ -37,3 +37,5 @@
     </tbody>
   </table>
 </div>
+
+<footer />

public/app/features/admin/partials/users.html

@@ -76,3 +76,5 @@
     </ol>
   </div>
 </div>
+
+<footer />