chore: add CODEOWNERS

Author: mvllow

.github/CODEOWNERS

@@ -0,0 +1,25 @@
+# Default owner for everything
+* @juliamertz
+
+# Individual style owners
+/styles/4get/ @ThatOneCalculator @juliamertz
+/styles/advent-of-code/ @adriankarlen @juliamertz
+/styles/bluesky/ @juliamertz
+/styles/brave-search/ @adriankarlen @juliamertz
+/styles/chatgpt/ @adriankarlen @juliamertz
+/styles/claude/ @juliamertz
+/styles/discord/ @juliamertz
+/styles/docs.rs/ @juliamertz
+/styles/github/ @juliamertz
+/styles/hetzner-cloud/ @juliamertz
+/styles/jira/ @adriankarlen @juliamertz
+/styles/nixos-search/ @JTrenerry @juliamertz
+/styles/octopus/ @adriankarlen @juliamertz
+/styles/phemex/ @KainoaKanter @juliamertz
+/styles/proton/ @juliamertz
+/styles/scribe/ @ThatOneCalculator @juliamertz
+/styles/status.cafe/ @bunfluff @juliamertz
+/styles/twitch/ @adriankarlen @juliamertz
+/styles/wikiwand/ @adriankarlen @juliamertz
+/styles/youtube/ @juliamertz
+/styles/zimbra/ @ThatOneCalculator @juliamertz