Move config files to CLI modules with lazy proxies

Move jest config files to cli-module-test-jest/config and node
transform + webpack-public-path to cli-module-build/config. Replace
originals in @backstage/cli/config with lazy proxies that forward
to the appropriate module or throw if it is not installed.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

packages/cli-module-build/.eslintrc.js

@@ -1 +1,3 @@
-module.exports = require('@backstage/cli/config/eslint-factory')(__dirname);
+module.exports = require('@backstage/cli/config/eslint-factory')(__dirname, {
+  ignorePatterns: ['config/**', 'templates/**'],
+});