Remove AppId extension

[ToufeeqP]

Description

• Removed AppId signed extension from runtime & updated the DA extrinsics with AppID param
• Added CheckBatchTransactions extension to the runtime to reject batched DA & bridge txs at tx-pool
• Disabled Kate RPCs & related runtime API's since we're planning to implement a new commitment scheme
• Node supports only the V4 header builder

Related PR's

avail-core: PR #132
avail-rust: PR #57
da-spammer: PR #1

Checklist

• I have performed a self-review of my own code.
• The tests pass successfully with cargo test.
• The code was formatted with cargo fmt.
• The code compiles with no new warnings with cargo build --release and cargo build --release --features runtime-benchmarks.
• The code has no new warnings when using cargo clippy.
• If this change affects documented features or needs new documentation, I have created a PR with a documentation update.

[Leouarz]

LGTM
e2e/da-spammer might miss some updates but it's fine for later

[ToufeeqP]

LGTM
e2e/da-spammer might miss some updates but it's fine for later

Updated e2e & here is the PR for spammer