Feat(plugin): Add set camera focus as ui-command

[Tainan404]

What does this PR do?

• Adds the set camera focus by userId or streamId on client

How to test

• Join a meeting with three users
• Share webcam in all of them
• Open one user devtools
• Run this command on console

const ev = new CustomEvent('SET_CAMERA_FOCUS_COMMAND', {
      detail: {
        focus: true,
        webcamSelector: [ { userId: '<userId>'}],
      },
    });
window.dispatchEvent(ev);

More

Closely related to bigbluebutton/bigbluebutton#22931

[welcome]

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[GuiLeme]

Is there any particular reason why we should allow the developer to pass a list of ObjectTo, instead of only one?
I thought that, perhaps in the future, we would support being able to set focus to multiple webcams at the same time, is that it? (I made the same comment in the other PR).

[GuiLeme]

Suggested change

	}
	,
	},

Adjusting typescipt error.

[GuiLeme]

Suggested change

	* Sets the in focus camera for a specific user.
	* Sets the focused camera for a specific user.

[GuiLeme]

Suggested change

	* @param setSelfViewDisableCommandArguments: object with a
	* @param setCameraFocusCommandArguments: object with a

Parameter name is slightly off.

[GuiLeme]

Suggested change

	* boolean that tells whether to enable or disable the camera focus for specific user.
	* object that tells whether to enable or disable the camera focus for specific user.