Use "your_firewall_name" everywhere in docs

Author: scheb

Resources/doc/configuration.md

@@ -88,7 +88,7 @@ scheb_two_factor:
 # config/packages/security.yaml
 security:
     firewalls:
-        yourFirewallName:
+        your_firewall_name:
             # ...
             two_factor:
                 auth_form_path: /2fa                  # Path or route name of the two-factor form

Resources/doc/csrf_protection.md

@@ -19,7 +19,7 @@ provider available in the security component:
 # app/config/security.yml
 security:
     firewalls:
-        secured_area:
+        your_firewall_name:
             two_factor:
                 csrf_token_generator: security.csrf.token_manager
 ```
@@ -40,7 +40,7 @@ your configuration:
 # app/config/security.yml
 security:
     firewalls:
-        secured_area:
+        your_firewall_name:
             two_factor:
                 csrf_parameter: _csrf_security_token
                 csrf_token_id: a_private_string

Resources/doc/installation.md

@@ -59,7 +59,7 @@ Enable two-factor authentication **per firewall** and configure `access_control`
 # config/packages/security.yaml
 security:
     firewalls:
-        main:
+        your_firewall_name:
             two_factor:
                 auth_form_path: 2fa_login    # The route name you have used in the routes.yaml
                 check_path: 2fa_login_check  # The route name you have used in the routes.yaml

Resources/doc/multi_authentication.md

@@ -11,7 +11,7 @@ You can set the in the firewall configuration:
 # config/packages/security.yaml
 security:
     firewalls:
-        yourFirewallName:
+        your_firewall_name:
             two_factor:
                 multi_factor: false  # If ALL active two-factor methods need to be fulfilled
 ```

Resources/doc/trusted_device.md

@@ -58,7 +58,7 @@ To flag a device as "trusted", in the last step of the 2fa process, you have to
 ```yaml
 security:
     firewalls:
-        yourFirewallName:
+        your_firewall_name:
             # ...
             two_factor:
                 trusted_parameter_name: _trusted  # Name of the parameter for the trusted device option