chore(frontend): remove lerna, config file and references to config file

.github/CODEOWNERS

@@ -450,7 +450,6 @@
 /.yarn @grafana/frontend-ops
 /.yarnrc.yml @grafana/frontend-ops
 /yarn.lock @grafana/frontend-ops
-/lerna.json @grafana/frontend-ops
 /.prettierrc.js @grafana/frontend-ops
 /.vim @zoltanbedi
 /jest.config.js @grafana/frontend-ops

.github/pr-commands.json

@@ -21,7 +21,7 @@
       "scripts/webpack/**/*",
       "package.json",
       "tsconfig.json",
-      "lerna.json",
+      "nx.json",
       ".prettierrc.js",
       ".eslintrc",
       "**/*.mdx"

lerna.json

@@ -1,5 +0,0 @@
-{
-  "$schema": "node_modules/lerna/schemas/lerna-schema.json",
-  "npmClient": "yarn",
-  "version": "11.6.0-pre"
-}

package.json

@@ -210,7 +210,6 @@
     "jest-watch-typeahead": "^2.2.2",
     "jimp": "^1.6.0",
     "jsdom-testing-mocks": "^1.13.1",
-    "lerna": "8.1.8",
     "mini-css-extract-plugin": "2.9.2",
     "msw": "2.7.0",
     "mutationobserver-shim": "0.3.7",