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/sdk/src/reference_docs/metadata.rs

@@ -1,7 +1,7 @@
 //! # Metadata
 //!
 //! The existence of metadata in pezkuwi-sdk goes back to the (forkless) upgrade-ability of all
-//! Substrate-based blockchains, which is achieved through
+//! Bizinikiwi-based blockchains, which is achieved through
 //! [`crate::reference_docs::wasm_meta_protocol`]. You can learn more about the details of how to
 //! deal with these upgrades in [`crate::reference_docs::frame_runtime_upgrades_and_migrations`].
 //!
@@ -9,9 +9,9 @@
 //! it is hard to know the types internal to the runtime, specifically in light of the fact that
 //! they can change at any point in time.
 //!
-//! This is why all Substrate-based runtimes must expose a [`sp_api::Metadata`] api, which mandates
-//! the runtime to return a description of itself. The return type of this api is `Vec<u8>`, meaning
-//! that it is up to the runtime developer to decide on the format of this.
+//! This is why all Bizinikiwi-based runtimes must expose a [`pezsp_api::Metadata`] api, which
+//! mandates the runtime to return a description of itself. The return type of this api is
+//! `Vec<u8>`, meaning that it is up to the runtime developer to decide on the format of this.
 //!
 //! All [`crate::pezkuwi_sdk::frame_runtime`] based runtimes expose a specific metadata language,
 //! maintained in <https://github.com/paritytech/frame-metadata> which is adopted in the Pezkuwi