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/__fixtures__/combined-html-comments.md

@@ -23,7 +23,7 @@ title: 向HTML Elements说你好
 ```yml
 tests:
   - text: 你的<code>h1</code>元素应该有“Hello World”文本。
-    testString: assert.isTrue((/hello(\s)+world/gi).test($('h1').text()));
+    testString: 'assert.isTrue((/hello(\s)+world/gi).test($("h1").text()), "Your <code>h1</code> element should have the text "Hello World".");'
 
 ```