test(wm): add window manager unit tests

Created a test that creates the WM instance and ensures the instance is
running. The test creates a custom socket and then cleans up the socket
file after completion.

Created a test that creates a WM instance, monitor instance, and
workpace. The tests checks to ensure that the expected workspace is
focused properly.

Included recommended fixes to ensure that the focus_workspace function
is used correctly and that the test accurately checks the workspaces
length, current workspace index, and switching to an existing workspace.

Cargo.lock

@@ -2678,6 +2678,7 @@ dependencies = [
  "tracing-appender",
  "tracing-subscriber",
  "uds_windows",
+ "uuid",
  "which",
  "win32-display-data",
  "windows 0.60.0",
@@ -5546,6 +5547,15 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
+[[package]]
+name = "uuid"
+version = "1.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0f540e3240398cce6128b64ba83fdbdd86129c16a3aa1a3a252efd66eb3d587"
+dependencies = [
+ "getrandom 0.3.1",
+]
+
 [[package]]
 name = "v_frame"
 version = "0.3.8"