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/challenges/chinese/10-coding-interview-prep/rosetta-code/balanced-brackets.md

@@ -3,6 +3,7 @@ id: 594dc6c729e5700999302b45
 title: 平衡括号
 challengeType: 5
 videoUrl: ''
+dashedName: balanced-brackets
 ---
 
 # --description--
@@ -125,5 +126,53 @@ assert(!isBalanced(testCases[16]));
 assert(isBalanced(testCases[17]));
 ```
 
+# --seed--
+
+## --after-user-code--
+
+```js
+const testCases = [
+  '[]',
+  ']][[[][][][]][',
+  '[][[[[][][[[]]]]]]',
+  '][',
+  '[[[]]]][[]',
+  '][[]',
+  '][[][]][[[]]',
+  '[[][]]][',
+  '[[[]]][[]]]][][[',
+  '[]][[]]][[[[][]]',
+  '][]][[][',
+  '[[]][[][]]',
+  '[[]]',
+  ']][]][[]][[[',
+  '][]][][[',
+  '][][',
+  '[]]]',
+  ''
+];
+```
+
+## --seed-contents--
+
+```js
+function isBalanced(str) {
+
+  return true;
+}
+```
+
 # --solutions--
 
+```js
+function isBalanced(str) {
+  if (str === '') return true;
+  let a = str;
+  let b;
+  do {
+    b = a;
+    a = a.replace(/\[\]/g, '');
+  } while (a !== b);
+  return !a;
+}
+```