Refactoring (#314)

* Refactoring

* Refactoring

* Check for a valid email.

* Fixed missing character.

* Moved logic to  the Utilities class.

* Rename template .sql file

* Modified null and empty string check.

* Check for a valid email.

* Fixed missing character.

* Moved logic to  the Utilities class.

* Added Favicon support, Progressive Web App support, page title and url support, and private/public user registration options

* Refactoring

* Refactoring

* Check for a valid email.

* Moved logic to  the Utilities class.

Co-authored-by: Aubrey <aubrey.b@treskcow.tech>
Co-authored-by: MIchael Atwood <matwood@dragonmastery.com>
Co-authored-by: Shaun Walker <shaun.walker@siliqon.com>

Oqtane.Client/Themes/BlazorTheme/Default.razor

@@ -21,7 +21,7 @@
 </div>
 
 @code {
-    public override string Panes { get { return "Content"; } }
+    public override string Panes => "Content";
 
     protected override async Task OnParametersSetAsync()
     {