[Charts] Add possibility to watermark exported charts

[j-mnizhek]

Is your feature request related to a problem? Please describe. We have a request on adding a possibility to watermark exported charts with the logo (Semrush or custom specified by the team).

Describe the solution you'd like More information will be later.

Additional context On of the teams needs this feature, and they plan to research the possible solution on their side firstly .

[j-mnizhek]

We need to discuss requirements for this task with stakeholders, and after that we will add this task to our roadmap.