chore: cleanup old jest references (#7198)

cli/.eslintrc.cjs

@@ -10,7 +10,6 @@ module.exports = {
   root: true,
   env: {
     node: true,
-    jest: true,
   },
   ignorePatterns: ['.eslintrc.js'],
   rules: {

cli/testSetup.js

@@ -1,3 +0,0 @@
-// add all jest-extended matchers
-import * as matchers from 'jest-extended';
-expect.extend(matchers);

docs/docs/developer/pr-checklist.md

@@ -7,7 +7,7 @@ When contributing code through a pull request, please check the following:
 - [ ] `npm run lint` (linting via ESLint)
 - [ ] `npm run format` (formatting via Prettier)
 - [ ] `npm run check:svelte` (Type checking via SvelteKit)
-- [ ] `npm test` (Tests via Jest)
+- [ ] `npm test` (unit tests)
 
 :::tip
 Run all web checks with `npm run check:all`
@@ -18,7 +18,7 @@ Run all web checks with `npm run check:all`
 - [ ] `npm run lint` (linting via ESLint)
 - [ ] `npm run format` (formatting via Prettier)
 - [ ] `npm run check` (Type checking via `tsc`)
-- [ ] `npm test` (Tests via Jest)
+- [ ] `npm test` (unit tests)
 
 :::tip
 Run all server checks with `npm run check:all`