fix: replace missing 'envelope' icon with 'mail' across modules

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/core/templates/core/store/settings.html

@@ -27,7 +27,7 @@
         {{ tab_button('marketplace', 'Marketplace', tab_var='activeSection', icon='shopping-cart') }}
         {{ tab_button('invoices', 'Invoices', tab_var='activeSection', icon='document-text') }}
         {{ tab_button('branding', 'Branding', tab_var='activeSection', icon='color-swatch') }}
-        {{ tab_button('email', 'Email', tab_var='activeSection', icon='envelope') }}
+        {{ tab_button('email', 'Email', tab_var='activeSection', icon='mail') }}
         {{ tab_button('domains', 'Domains', tab_var='activeSection', icon='globe-alt') }}
         {{ tab_button('api', 'API', tab_var='activeSection', icon='key') }}
         {{ tab_button('notifications', 'Notifications', tab_var='activeSection', icon='bell') }}

app/modules/messaging/definition.py

@@ -120,7 +120,7 @@ messaging_module = ModuleDefinition(
                     MenuItemDefinition(
                         id="email-logs",
                         label_key="messaging.menu.email_logs",
-                        icon="envelope",
+                        icon="mail",
                         route="/admin/email-logs",
                         order=50,
                     ),

app/modules/tenancy/static/store/js/settings.js

@@ -41,7 +41,7 @@ function storeSettings() {
             { id: 'domains', label: 'Domains', icon: 'globe-alt' },
             { id: 'api', label: 'API & Payments', icon: 'key' },
             { id: 'notifications', label: 'Notifications', icon: 'bell' },
-            { id: 'email', label: 'Email', icon: 'envelope' }
+            { id: 'email', label: 'Email', icon: 'mail' }
         ],
 
         // Forms for different sections

app/modules/tenancy/templates/tenancy/store/settings.html

@@ -27,7 +27,7 @@
         {{ tab_button('marketplace', 'Marketplace', tab_var='activeSection', icon='shopping-cart') }}
         {{ tab_button('invoices', 'Invoices', tab_var='activeSection', icon='document-text') }}
         {{ tab_button('branding', 'Branding', tab_var='activeSection', icon='color-swatch') }}
-        {{ tab_button('email', 'Email', tab_var='activeSection', icon='envelope') }}
+        {{ tab_button('email', 'Email', tab_var='activeSection', icon='mail') }}
         {{ tab_button('domains', 'Domains', tab_var='activeSection', icon='globe-alt') }}
         {{ tab_button('api', 'API', tab_var='activeSection', icon='key') }}
         {{ tab_button('notifications', 'Notifications', tab_var='activeSection', icon='bell') }}