Add the new logo to the settings tab and the "About"-modal

[D0miH]

Is your feature request related to a problem? Please describe. The old logo is displayed on the settings tab and the "About"-modal.

Describe the solution you'd like Add the new logo to the "About"-modal and the settings tab.

Additional context This logo should be used (thanks again to @edwardbattistini) for creating this logo): Logo.pdf

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