chore(README): add note about Coder Desktop requirement for Local Windows RDP module and remove coder desktop requirement from frontmatter

Author: DevelopmentCats

registry/coder/modules/local-windows-rdp/README.md

@@ -4,7 +4,6 @@ description: Enable RDP on Windows and add a one-click Coder Desktop button for
 icon: ../../../../.icons/desktop.svg
 maintainer_github: coder
 verified: true
-coder_desktop: true
 supported_os: [windows]
 tags: [rdp, windows, desktop, remote]
 ---
@@ -13,6 +12,8 @@ tags: [rdp, windows, desktop, remote]
 
 This module enables Remote Desktop Protocol (RDP) on Windows workspaces and adds a one-click button to launch RDP sessions directly through [Coder Desktop](https://coder.com/docs/user-guides/desktop). It provides a complete, standalone solution for RDP access, eliminating the need for manual configuration or port forwarding through the Coder CLI.
 
+> **Note**: [Coder Desktop](https://coder.com/docs/user-guides/desktop) is required on client devices to use the Local Windows RDP access feature.
+
 ```tf
 module "rdp_desktop" {
   count      = data.coder_workspace.me.start_count