fix/ Fix account balance not reflect correctly + Improve websocket connection

[mlguys]

Before submitting this PR, please make sure:

• Your code builds clean without any errors or warnings
• You are using approved title ("feat/", "fix/", "docs/", "refactor/")

A description of the changes proposed in the pull request:
Fixed:

• Account balance in status not updated (Feat/XRPL connector v2 gateway#128 (comment))
• Websocket connection to XRPL RCP node not stable for long time bot running

Added:

• API throttler for rate limit edge case

Tests performed by the developer:

• Run PMM for SOLO/XRP on Ripple DEX mainnet for 1 hour, no major error. Made 5 trades, all trades and order fills are tracked correctly.
• Link to the market: https://sologenic.org/trade?network=mainnet&market=534F4C4F00000000000000000000000000000000%2BrsoLo2S1kiGeCcn6hCUXVrCpGMWLrRrLZz%2FXRP

Tips for QA testing:

• You would need an activated ripple account to trade on Ripple mainnet DEX
• This PR has a counterpart in gateway: fix/ Fix account balance not reflect correctly + Improve websocket connection gateway#249

[cardosofede]

LGTM!