feat(ui): add breadcrumb icons, fix alignment, and remove duplicate form headers

- add section icons to all breadcrumbs across every page
- fix breadcrumb nav display:flex so icons align vertically with buttons
- wrap all page breadcrumbs in pageToolbar div for consistent layout
- add Breadcrumbs to AllRunsPage which previously used a plain h1
- fix envCardHeader flex:1 so settings button hugs the right edge
- remove card header from environment create/edit forms (duplicated breadcrumb)

client/src/i18n/locales/en.json

@@ -32,7 +32,7 @@
     "action_add": "Add environment",
     "action_edit": "Edit",
     "action_save": "Create",
-    "action_update": "Save changes",
+    "action_update": "Save",
     "action_cancel": "Cancel",
     "create_title": "New Environment",
     "edit_title": "Edit Environment",
@@ -57,7 +57,7 @@
     "action_delete": "Delete",
     "action_add": "Add credential",
     "action_save": "Create",
-    "action_update": "Save changes",
+    "action_update": "Save",
     "action_cancel": "Cancel",
     "create_title": "New Credential",
     "edit_title": "Edit Credential",
@@ -123,7 +123,7 @@
     "action_import": "Import",
     "import_error": "Failed to import scenario",
     "action_save": "Create",
-    "action_update": "Save changes",
+    "action_update": "Save",
     "action_cancel": "Cancel",
     "create_title": "New Scenario",
     "edit_title": "Edit Scenario",
@@ -167,7 +167,7 @@
     "action_edit": "Edit",
     "action_delete": "Delete",
     "action_save": "Add step",
-    "action_update": "Save changes",
+    "action_update": "Save",
     "action_cancel": "Cancel",
     "form_order": "Order",
     "form_order_invalid": "Order must be a non-negative integer",
@@ -219,7 +219,7 @@
     "action_delete": "Delete",
     "action_add": "Add snippet",
     "action_save": "Create",
-    "action_update": "Save changes",
+    "action_update": "Save",
     "action_cancel": "Cancel",
     "create_title": "New Snippet",
     "edit_title": "Edit Snippet",