Spelling corrections

[FelixWolf]

Correct a minor spelling mistake in the settings and comments

[Rider-Linden]

I want these, but there is a pre-commit issue and a conflict that need resolving first.

[Copilot]

Pull request overview

This pull request corrects spelling mistakes throughout the codebase, fixing common typos in comments, configuration descriptions, and test fixtures. The changes are purely textual and do not affect code functionality.

Changes:

• Fixed "wether" → "whether" (6 occurrences)
• Fixed "unkown" → "unknown" (4 occurrences)
• Fixed "fisrt" → "first" (1 occurrence)
• Fixed "stlye" → "style" (1 occurrence)
• Removed trailing whitespace (2 files)

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/test/workspace/set_2/nested_a_expected.luau	Corrected spelling in test fixture error message
src/shared/parser.ts	Fixed spelling in comment and inline documentation
src/shared/luadefsgenerator.ts	Removed trailing whitespace
src/shared/includeprocessor.ts	Corrected spelling in JSDoc comment
package.json	Fixed spelling errors in multiple configuration descriptions
data/syntax_def_default.json	Removed trailing whitespace

Comments suppressed due to low confidence (2)

package.json:141

• Corrected spelling of 'stlye' to 'style'

        "title": "SL Scripting - Network",

package.json:102

• Corrected spelling of 'Wether' to 'Whether'

        "title": "SL Scripting - Preprocessor",