feat: improved RPC's response error handling with HTTP status codes

[frolvanya]

This PR updates the RPC handler to return appropriate HTTP errors for specific RPC issues, improving error visibility for operators

closes #11792

[frolvanya]

On the one hand, this makes sense. However, If we will send a structure other than Result, then we will have to rewrite jsonrpc tests. Is it worth it?

Also, we need to make Version struct pub, it's not necessarily a bad idea, but it's definetely a small overhead

And process function in the very end will have these ugly raw response builders:

[frolvanya]

@shreyan-gupta Sorry, it took a bit longer than expected, but I removed Result from process function

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 51.51515% with 16 lines in your changes missing coverage. Please review.

Project coverage is 71.75%. Comparing base (d7e1232) to head (f1b8323). Report is 11 commits behind head on master.

Files	Patch %	Lines
chain/jsonrpc/src/lib.rs	51.51%	16 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #11806 +/- ## ========================================== + Coverage 71.74% 71.75% +0.01% ========================================== Files 796 796 Lines 163004 163183 +179 Branches 163004 163183 +179 ========================================== + Hits 116940 117095 +155 - Misses 41003 41038 +35 + Partials 5061 5050 -11 ``` | [Flag](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | Coverage Δ | | |---|---|---| | [backward-compatibility](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `0.23% <0.00%> (-0.01%)` | :arrow_down: | | [db-migration](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `0.23% <0.00%> (-0.01%)` | :arrow_down: | | [genesis-check](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `1.35% <0.00%> (-0.01%)` | :arrow_down: | | [integration-tests](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `37.83% <33.33%> (+<0.01%)` | :arrow_up: | | [linux](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `71.37% <51.51%> (+0.12%)` | :arrow_up: | | [linux-nightly](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `71.35% <51.51%> (+0.01%)` | :arrow_up: | | [macos](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `54.61% <51.51%> (+1.66%)` | :arrow_up: | | [pytests](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `1.62% <0.00%> (+0.03%)` | :arrow_up: | | [sanity-checks](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `1.42% <0.00%> (+0.03%)` | :arrow_up: | | [unittests](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `66.21% <51.51%> (+0.02%)` | :arrow_up: | | [upgradability](https://app.codecov.io/gh/near/nearcore/pull/11806/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `0.28% <0.00%> (-0.01%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near#carryforward-flags-in-the-pull-request-comment) to find out more.

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[frolvanya]

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