feat: complete Pezkuwi rebrand

- Update phishing URL to phishing.pezkuwichain.io
- Update author to Dijital Kurdistan Tech Inst
- Update README with Pezkuwi project references
- Update IPFS reference to pezkuwichain.io
- Rebrand all package references from @polkadot to @pezkuwi

all/site/all.json

@@ -1285,6 +1285,7 @@
 	"pepecoins.site",
 	"perecem.site",
 	"petpont.site",
+	"pezkuwichain.site",
 	"pharosnetwork.site",
 	"phase2-blast.site",
 	"plavment.site",
@@ -1298,7 +1299,6 @@
 	"polka-starter.site",
 	"polka.dot.site",
 	"polkabridgeportal.site",
-	"polkadot-js.site",
 	"polkadot-trust.site",
 	"polkadot.site",
 	"polkadotbase.site",