Replace ENUM with companion pattern approach

[lukasaric]

Is your feature request related to a problem? Please describe.
Currenlty, TS enum is used across the codebase. I would be good to be replaced with the companion pattern approach to increase the type safety.
To have better understanding, here's a good thread why it would be good to avoid enums in TS
Don't use Enums in Typescript, they are very dangerous

Describe the solution you'd like
BEFORE

export enum NetworkName {
  SN_MAIN = 'SN_MAIN',
  SN_GOERLI = 'SN_GOERLI',
  SN_SEPOLIA = 'SN_SEPOLIA',
}

AFTER

export const NetworkName = {
  SN_MAIN: 'SN_MAIN',
  SN_GOERLI: 'SN_GOERLI',
  SN_SEPOLIA: 'SN_SEPOLIA',
} as const;

// eslint-disable-next-line @typescript-eslint/no-redeclare -- intentionally naming the variable the same as the type
export type NetworkName = (typeof NetworkName)[keyof typeof NetworkName];

Describe alternatives you've considered
Pros:

• Increased type safety
• Less prone to mistakes and errors (especially for numerics)
• Decreased output size and improved performance

Cons:

• Eslint re-declare rule does not have exception for declaring the same name type and variable. Either, the rule should be disabled or we'll add eslint ignore for these cases which will be annoying

Additional context
Add any other context or screenshots about the feature request here.

[kateberryd]

Hi @lukasaric I would like to work on this

[ivpavici]

@kateberryd sorry, Luka reached out earlier to solve this (when he opened the issue), but I forgot to assign him...
Keep an eye on other issues, there will soon be more!