Consolidate vitest CI & coverage (#33808)

* Consolidate modules vitest coverage

* Use vite-common as base for modules vitest config

* Make knip happier

* Fix coverage paths

* Place modules unit tests alongside src

* Switch to defineProject for better type safety

* Consolidate vitest CI & coverage

Kills off vite-common

* Update comment

* Update lockfile

* Fix shared-components vitest config

* Soften eslint config for tests in modules

* Run eslint on modules/playwright dir too

* Make tsc happy

packages/module-api/package.json

@@ -37,14 +37,12 @@
         "coverage:diff": "diff-cover --config-file ../../diff-cover.toml coverage/lcov.info"
     },
     "devDependencies": {
-        "@element-hq/vite-common": "workspace:*",
         "@matrix-org/react-sdk-module-api": "^2.5.0",
         "@microsoft/api-extractor": "^7.49.1",
         "@types/node": "^22.10.7",
         "@types/react": "catalog:",
         "@types/react-dom": "catalog:",
         "@types/semver": "^7.5.8",
-        "@vitest/coverage-v8": "catalog:",
         "matrix-widget-api": "^1.17.0",
         "rollup-plugin-external-globals": "^0.13.0",
         "semver": "^7.6.3",