This commit address an issue where focusing a window on a hidden
workspace inadvertently triggered a second `focusWindow` call due to
simulated mouse movement. This behaviour led to the incorrect focus on
the window under the cursor instead of target window of method
`focusWindow()`, disrupting `focusurgentorlast` and `focuscurrentorlast`
dispatchers. Introduced a flag to the `CMonitor::changeWorkspace()`
method to prevent simulated mouse movements. This flag is set to false
by default. Changed the `focusWindow()` method accordingly to set this
flag to true when the target window is in a hidden workspace.
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