refactor: config management

[vinitparekh17]

[generated by github copilot]

This pull request introduces a new configuration parser, updates configuration files, and modifies test setup and dependencies. The most important changes include the addition of a new ConfigParser in config/parser.go, updates to configuration files, and adjustments in test setup and dependency management.

Configuration Management:

• config/parser.go: Added a new ConfigParser to handle parsing configuration files and unmarshalling configuration values into structs. This parser supports reading from files, stdin, and setting default values.

Configuration Files:

• dice.conf: Added a new configuration file for Dicedb with various settings including server, HTTP, WebSocket, performance, memory, persistence, logging, authentication, and network configurations.
• dice.toml: Removed the old TOML configuration file that included similar settings to the new dice.conf file.

Dependency Management:

• go.mod: Removed several indirect dependencies and added github.com/kr/pretty as a new indirect dependency. [1] [2]

Test Setup Adjustments:

• integration_tests/commands/http/setup.go: Updated the HTTP server setup to use the new configuration structure.
• integration_tests/commands/websocket/setup.go: Updated the WebSocket server setup to use the new configuration structure.

Test Improvements:

• integration_tests/commands/websocket/json_test.go: Added missing error assertions in the TestJsonARRTRIM and TestJsonARRINSERT tests. [1] [2]
• integration_tests/config/config_test.go: Commented out old test cases and added a placeholder for new tests to be implemented.

[vinitparekh17]

Although it is work in progress, I am open for suggestions and feedback from the community. @JyotinderSingh @lucifercr07 @soumya-codes @arpitbbhayani @apoorvyadav1111

[vinitparekh17]

pending changes,

• [ ] test cases for new implementation
• [ ] stable support for sub cmd / flags

[JyotinderSingh]

Thanks for working on this @vinitparekh17. The overall changes seem to be going in the correct direction!

[vinitparekh17]

@JyotinderSingh, @lucifercr07 review plz