release next-yak 4.0.4 and yak-swc 4.0.4

[Luca Schneider (Mad-Kat)]

next-yak

• 171898f: Fix issue with the css prop where it wouldn't be generated when used inside an exported component
• d4379a2: Updated all dependencies
• 7f90169: Updated @types/react to 19.0.2
• 145c621: Refactor CSS prop types to improve type inference and consistency
  • Added new type CSSProp to be used by custom components to receive the css prop in a somewhat typesafe way
  • Updated css function to return ComponentStyle only

yak-swc

• 171898f: Fix issue with the css prop where it wouldn't be generated when used inside an exported component
• d4379a2: Updated all dependencies