♿ style(MCP): Enhance dialog accessibility and styling consistency (#11585)

* style: update input IDs in BasicInfoSection for consistency and improve accessibility

* style: add border-destructive variable for improved design consistency

* style: update error border color for title input in BasicInfoSection

* style: update delete confirmation dialog title and description for MCP Server

* style: add text-destructive variable for improved design consistency

* style: update error message and border color for URL and trust fields for consistency

* style: reorder imports and update error message styling for consistency across sections

* style: enhance MCPServerDialog with copy link functionality and UI improvements

* style: enhance MCPServerDialog with improved accessibility and loading indicators

* style: bump @librechat/client to 0.4.51 and enhance OGDialogTemplate for improved selection handling

* a11y: enhance accessibility and error handling in MCPServerDialog sections

* style: enhance MCPServerDialog accessibility and improve resource name handling

* style: improve accessibility in MCPServerDialog and AuthSection, update translation for delete confirmation

* style: update aria-invalid attributes to use string values for improved accessibility in form sections

* style: enhance accessibility in AuthSection by updating aria attributes and adding error messages

* style: remove unnecessary aria-hidden attributes from Spinner components in MCPServerDialog

* style: simplify legacy selection check in OGDialogTemplate

client/src/locales/en/translation.json

@@ -857,8 +857,11 @@
   "com_ui_copy_url_to_clipboard": "Copy URL to clipboard",
   "com_ui_create": "Create",
   "com_ui_create_api_key": "Create API Key",
+  "com_ui_created": "Created",
+  "com_ui_creating": "Creating...",
   "com_ui_create_assistant": "Create Assistant",
   "com_ui_create_link": "Create link",
+  "com_ui_create_mcp_server": "Create MCP server",
   "com_ui_create_memory": "Create Memory",
   "com_ui_create_new_agent": "Create New Agent",
   "com_ui_create_prompt": "Create Prompt",
@@ -893,6 +896,7 @@
   "com_ui_decline": "I do not accept",
   "com_ui_default_post_request": "Default (POST request)",
   "com_ui_delete": "Delete",
+  "com_ui_deleting": "Deleting...",
   "com_ui_delete_action": "Delete Action",
   "com_ui_delete_action_confirm": "Are you sure you want to delete this action?",
   "com_ui_delete_agent": "Delete Agent",
@@ -915,6 +919,8 @@
   "com_ui_delete_tool": "Delete Tool",
   "com_ui_delete_tool_confirm": "Are you sure you want to delete this tool?",
   "com_ui_delete_tool_save_reminder": "Tool removed. Save the agent to apply changes.",
+  "com_ui_delete_mcp_server": "Delete MCP Server?",
+  "com_ui_delete_mcp_server_name": "Delete MCP server {{0}}",
   "com_ui_deleted": "Deleted",
   "com_ui_deleting_file": "Deleting file...",
   "com_ui_descending": "Desc",
@@ -1111,7 +1117,7 @@
   "com_ui_mcp_server": "MCP Server",
   "com_ui_mcp_server_connection_failed": "Connection attempt to the provided MCP server failed. Please make sure the URL, the server type, and any authentication configuration are correct, then try again. Also ensure the URL is reachable.",
   "com_ui_mcp_server_created": "MCP server created successfully",
-  "com_ui_mcp_server_delete_confirm": "Are you sure you want to delete this MCP server?",
+  "com_ui_mcp_server_delete_confirm": "Are you sure you want to delete the {{0}} MCP server?",
   "com_ui_mcp_server_deleted": "MCP server deleted successfully",
   "com_ui_mcp_server_role_editor": "MCP Server Editor",
   "com_ui_mcp_server_role_editor_desc": "Can view, use, and edit MCP servers",
@@ -1438,6 +1444,8 @@
   "com_ui_unset": "Unset",
   "com_ui_untitled": "Untitled",
   "com_ui_update": "Update",
+  "com_ui_updating": "Updating...",
+  "com_ui_update_mcp_server": "Update MCP server",
   "com_ui_upload": "Upload",
   "com_ui_upload_agent_avatar": "Successfully updated agent avatar",
   "com_ui_upload_agent_avatar_label": "Upload agent avatar image",