refactor: split sonar to its own config

[favna]

Please describe the changes this PR makes and why it should be merged:

TL;DR: I want to be able to not load the sonarjs plugin

Sonarlint plugin is giving lots of trouble because the versions of their dependencies is behind neon, in particular typescript-eslint being v7 with sonar. This is giving lots of conflicting dependencies issues. I'm also getting issues relating to Sonar forcing a dependency of for example eslint-plugin-react despite the project not needing or configuring React. Even if I allow Yarn to pull in all dependencies and not skip anything I still get this error now:

Oops! Something went wrong! :(

ESLint: 9.15.0

TypeError: Cannot read properties of undefined (reading 'meta')
    at decorate (/Users/favna/workspace/favware/discord-application-emojis-manager/node_modules/eslint-plugin-sonarjs/cjs/S1116/decorator.js:12:65)
    at Object.<anonymous> (/Users/favna/workspace/favware/discord-application-emojis-manager/node_modules/eslint-plugin-sonarjs/cjs/S1116/index.js:25:44)
    at Module._compile (node:internal/modules/cjs/loader:1546:14)
    at Object..js (node:internal/modules/cjs/loader:1689:10)
    at Module.load (node:internal/modules/cjs/loader:1318:32)
    at Function._load (node:internal/modules/cjs/loader:1128:12)
    at TracingChannel.traceSync (node:diagnostics_channel:315:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:218:24)
    at Module.require (node:internal/modules/cjs/loader:1340:12)
    at require (node:internal/modules/helpers:141:16)

[favna]

Looks like this was mostly a fluke of local setup.