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>

tools/formatter/add-seed-and-solution/get-challenge-text.js

@@ -0,0 +1,26 @@
+const unified = require('unified');
+const vfile = require('to-vfile');
+const markdown = require('remark-parse');
+const frontmatter = require('remark-frontmatter');
+
+const textToData = require('./plugins/text-to-data');
+const testsToData = require('./plugins/tests-to-data');
+const questionToData = require('./plugins/question-to-data');
+
+const textProcessor = unified()
+  .use(markdown)
+  .use(textToData)
+  .use(testsToData)
+  .use(questionToData)
+  .use(frontmatter, ['yaml']);
+
+exports.getText = createProcessor(textProcessor);
+
+function createProcessor(processor) {
+  return async msg => {
+    const file = typeof msg === 'string' ? vfile.readSync(msg) : msg;
+    const tree = processor.parse(file);
+    await processor.run(tree, file);
+    return file.data;
+  };
+}