fix(kasmvnc): update kasmvnc desktop environment list to match upstream (#598)

## Description This PR makes the following changes to `coder/modules/kasmvnc`: - Update desktop environment list for the KasmVNC module Currently upstream supports a number of [additional Desktop Environments](https://github.com/kasmtech/KasmVNC/blob/v1.4.0/unix/vncserver.man#L56-L67). The change updates the list so that DEs like Mate are supported. Do note that `manual` is also supported if `$HOME/.vnc/xstartup` is supplied, so this has been added as another option, too. ## Type of Change - [ ] New module - [ ] New template - [X] Bug fix - [ ] Feature/enhancement - [ ] Documentation - [ ] Other ## Module Information <!-- Delete this section if not applicable --> **Path:** `registry/coder/modules/kasmvnc` **New version:** `v1.2.7` **Breaking change:** [ ] Yes [X] No ## Testing & Validation - [X] Tests pass (`bun test`) - [X] Code formatted (`bun fmt`) - [X] Changes tested locally ## Related Issues None Co-authored-by: DevCats <[email protected]>

Author: netsgnut

registry/coder/modules/kasmvnc/README.md

@@ -14,7 +14,7 @@ Automatically install [KasmVNC](https://kasmweb.com/kasmvnc) in a workspace, and
 module "kasmvnc"{
  count = data.coder_workspace.me.start_count
  source = "registry.coder.com/coder/kasmvnc/coder"
- version = "1.2.6"
+ version = "1.2.7"
  agent_id = coder_agent.example.id
  desktop_environment = "xfce"
  subdomain = true

registry/coder/modules/kasmvnc/main.tf

@@ -31,7 +31,7 @@ variable "desktop_environment"{
 description="Specifies the desktop environment of the workspace. This should be pre-installed on the workspace."
 
 validation{
-condition=contains(["xfce", "kde", "gnome", "lxde", "lxqt"], var.desktop_environment)
+condition=contains(["cinnamon", "mate", "lxde", "lxqt", "kde", "gnome", "xfce", "manual"], var.desktop_environment)
 error_message="Invalid desktop environment. Please specify a valid desktop environment."
  }
 }