fix: lsp hover docs

[shruti2522]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y
  fix [bug] lsp hover content error #1303

2. What is the scope of this PR (e.g. component or file name):

kcl/kclvm/sema/src/ty/mod.rs

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

"schema Data1[n: str](Data)" was being misinterpreted as markdown "schema Data1n: str".

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

[shruti2522]

current hover:

[coveralls]

Pull Request Test Coverage Report for Build 9086404385

Details

• 6 of 8 (75.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 71.018%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
kclvm/sema/src/ty/mod.rs	6	8	75.0%

Totals
Change from base Build 9073127729:	0.0%
Covered Lines:	53493
Relevant Lines:	75323

---

💛 - Coveralls

[Peefy]

LGTM