Allowing setting the redirect url and text

mfa/templates/FIDO2/Add.html

@@ -32,7 +32,7 @@
     }).then(function (res)
         {
       if (res["status"] =='OK')
-            $("#res").html("<div class='alert alert-success'>Registered Successfully, <a href='{% url 'mfa_home' %}'> Go to Security Home</a></div>")
+            $("#res").html("<div class='alert alert-success'>Registered Successfully, <a href='{{redirect_html}}'> {{reg_success_msg}}</a></div>")
         else
             $("#res").html("<div class='alert alert-danger'>Registeration Failed as " + res["message"] + ", <a href='javascript:void(0)' onclick='begin_reg()'> try again or <a href='{% url 'mfa_home' %}'> Go to Security Home</a></div>")
 

mfa/templates/TOTP/Add.html

@@ -43,7 +43,7 @@
                 else
                 {
                     alert("Your authenticator is added successfully.")
-                    window.location.href="{% url 'mfa_home' %}"
+                    window.location.href="{{ redirect_html }}"
                 }
             }
         })

mfa/templates/U2F/Add.html

@@ -24,7 +24,7 @@
                             if (data == "OK")
                             {
                                 alert("Your device is added successfully.")
-                                window.location.href="{% url 'mfa_home' %}"
+                                window.location.href="{{ redirect_html }}"
                             }
                         }
                     })