Add processing of 0 kind of offchain storage

[kamilsa]

Referenced issues

None

Description of the Change

It turns out

kagome/core/host_api/impl/offchain_extension.cpp

Lines 192 to 193 in c1c9575

	runtime::WasmSpan OffchainExtension::ext_offchain_local_storage_get_version_1(
	runtime::WasmI32 kind, runtime::WasmSpan key) {

can actually receive 0 as a storage kind.
This is probably a bug from the runtime. So we should treat this as Persistent storage as it was checked that in Polkadot-SDK the same host api always receives persistent storage kind.
Without this fix KAGOME throws an error

Possible Drawbacks

A bit dirty(

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