added logo for devday 23

[artifactdev]

added logo with number 23 for the next devday

[coveralls]

Pull Request Test Coverage Report for Build 3394041784

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.469%

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Totals
Change from base Build 3328678647:	0.0%
Covered Lines:	3847
Relevant Lines:	3949

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💛 - Coveralls

[artifactdev]

Yeah like the others as well, assets are copied from source to the compiled static directory of the cms