Decreased block computation capacity

[ToufeeqP]

Pull Request type

Please add the labels corresponding to the type of changes your PR introduces:

• Other:

Description

Decreased the block computation capacity by 60%, this will also decrease the DA transaction pricing. (From ~21.5 AVAIL/MB to ~8.5 AVAIL/MB ) and increased the base_weight by 100x to make the min tx cost to 0.1 AVAIL

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.