Add overrideTargetPaths test utility and fix rebase issues

Adds `overrideTargetPaths` to `@backstage/cli-common/testUtils` for
cleanly mocking `targetPaths` in tests without `jest.mock` or
`jest.spyOn`. Migrates all existing test mocks to use the new utility.

Also fixes translations module imports broken by the rebase.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

packages/cli-common/package.json

@@ -6,9 +6,7 @@
     "role": "node-library"
   },
   "publishConfig": {
-    "access": "public",
-    "main": "dist/index.cjs.js",
-    "types": "dist/index.d.ts"
+    "access": "public"
   },
   "keywords": [
     "backstage"
@@ -20,8 +18,23 @@
     "directory": "packages/cli-common"
   },
   "license": "Apache-2.0",
+  "exports": {
+    ".": "./src/index.ts",
+    "./testUtils": "./src/testUtils.ts",
+    "./package.json": "./package.json"
+  },
   "main": "src/index.ts",
   "types": "src/index.ts",
+  "typesVersions": {
+    "*": {
+      "testUtils": [
+        "src/testUtils.ts"
+      ],
+      "package.json": [
+        "package.json"
+      ]
+    }
+  },
   "files": [
     "dist"
   ],