chore: Remove target debug-unit and add unit-debug (#6411)

* debug-unit is confusing
* unit-debug runs all tests in debug mode

package.json

@@ -11,10 +11,10 @@
     "test-browser": "wtr",
     "test-browser-watch": "wtr --watch",
     "unit": "npm run tsc-cjs && mocha --config mocha-config/puppeteer-unit-tests.js",
+    "unit-debug": "npm run tsc-cjs && mocha --inspect-brk --config mocha-config/puppeteer-unit-tests.js",
     "unit-with-coverage": "cross-env COVERAGE=1 npm run unit",
     "assert-unit-coverage": "cross-env COVERAGE=1 mocha --config mocha-config/coverage-tests.js",
     "funit": "PUPPETEER_PRODUCT=firefox npm run unit",
-    "debug-unit": "node --inspect-brk test/test.js",
     "test": "npm run tsc && npm run lint --silent && npm run unit-with-coverage && npm run test-browser && npm run test-types",
     "prepare": "node typescript-if-required.js",
     "prepublishOnly": "npm run tsc",