Path operations

[Lancetnik]

Description

Little Context refactor (support access to dict fields) -> add Header and Path (RMQ, Nats) objects

Shorter message imports

faststream.nats.annotations.NatsMessage -> faststream.nats.NatsMessage

Fix FastAPI plugin .pyi arguments

Fix some docs styles, fill publisher docs pages, add Header and Path docs sections

close #682
close #764

Type of change

Please delete options that are not relevant.

• Documentation (typos, code examples, or any documentation updates)
• Bug fix (a non-breaking change that resolves an issue)
• New feature (a non-breaking change that adds functionality)
• Breaking change (a fix or feature that would disrupt existing functionality)
• This change requires a documentation update

Checklist

• My code adheres to the style guidelines of this project (scripts/lint.sh shows no errors)
• I have conducted a self-review of my own code
• I have made the necessary changes to the documentation
• My changes do not generate any new warnings
• I have added tests to validate the effectiveness of my fix or the functionality of my new feature
• Both new and existing unit tests pass successfully on my local environment by running scripts/test-cov.sh
• I have ensured that static analysis tests are passing by running scripts/static-anaylysis.sh
• I have included code examples to illustrate the modifications

[Lancetnik]

@kumaranvpl can you please check docs changes?

Then, PR is ready to merge, so you can request for Davor approve and we can release 0.2.4

[kumaranvpl]

@Lancetnik Sorry. I just saw your comment. Will check it tomorrow as first thing.

[kumaranvpl]

@Lancetnik @davorrunje Proofreading done and I have pushed my changes.