feat(curriculum): restore seed + solution to Chinese (#40683)

* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>

curriculum/schema/challengeSchema.js

@@ -28,6 +28,7 @@ const schema = Joi.object()
       .max(11)
       .required(),
     checksum: Joi.number(),
+    // TODO: require this only for normal challenges, not certs
     dashedName: Joi.string(),
     description: Joi.when('challengeType', {
       is: Joi.only([challengeTypes.step, challengeTypes.video]),
@@ -51,7 +52,6 @@ const schema = Joi.object()
     isComingSoon: Joi.bool(),
     isLocked: Joi.bool(),
     isPrivate: Joi.bool(),
-    name: Joi.string(),
     order: Joi.number(),
     // video challenges only:
     videoId: Joi.when('challengeType', {