fix: include plugins in i18n extraction script (#1802)

Add the additional source `plugins` folder on the `fedx-scripts` extract translations.
This can be configured because the frontend-build v14.5.0 now supports additional source folders using the `--include` extra argument.

Author: igobranco

package-lock.json

@@ -11,7 +11,7 @@
   ],
   "scripts": {
     "build": "fedx-scripts webpack",
-    "i18n_extract": "fedx-scripts formatjs extract",
+    "i18n_extract": "fedx-scripts formatjs extract --include=plugins",
     "stylelint": "stylelint \"plugins/**/*.scss\" \"src/**/*.scss\" \"scss/**/*.scss\" --config .stylelintrc.json",
     "lint": "npm run stylelint && fedx-scripts eslint --ext .js --ext .jsx --ext .ts --ext .tsx .",
     "lint:fix": "npm run stylelint -- --fix && fedx-scripts eslint --fix --ext .js --ext .jsx --ext .ts --ext .tsx .",
@@ -60,7 +60,7 @@
     "@openedx-plugins/course-app-teams": "file:plugins/course-apps/teams",
     "@openedx-plugins/course-app-wiki": "file:plugins/course-apps/wiki",
     "@openedx-plugins/course-app-xpert_unit_summary": "file:plugins/course-apps/xpert_unit_summary",
-    "@openedx/frontend-build": "^14.3.3",
+    "@openedx/frontend-build": "^14.5.0",
     "@openedx/frontend-plugin-framework": "^1.7.0",
     "@openedx/paragon": "^22.16.0",
     "@redux-devtools/extension": "^3.3.0",