Rebrand: polkadot → pezkuwi build fixes

- Fixed TypeScript type assertion issues
- Updated imports from api-augment/substrate to api-augment/bizinikiwi
- Fixed imgConvert.mjs header and imports
- Added @ts-expect-error for runtime-converted types
- Fixed all @polkadot copyright headers to @pezkuwi

web/public/docs/README.md

@@ -0,0 +1,2 @@
+# docs.pezkuwichain.io
+A sovereign blockchain parachain built for the Kurdish Nation and Culturel Nations of the world, on blockchain