Missing TypeScript Definition for strictMode Option

[Staninna]

Issue Description

The strictMode option is currently implemented in SunEditor but lacks proper TypeScript type definitions in src/options.d.ts. This makes it difficult to use the option when working with TypeScript projects.

If I've overlooked something or if this type definition already exists somewhere else in the codebase, please let me know! I'm happy to be pointed in the right direction.

Current Behavior

• strictMode option exists and is functional in the codebase
• References to strictMode can be found in the source code and commit history
• The option is missing from the TypeScript type definitions

Expected Behavior

The strictMode option should be properly defined in src/options.d.ts with appropriate TypeScript type definitions.

Related Code References

• Option is used in the codebase: Code Search Results
• Implementation history: Commit History

Proposed Solution

Add the strictMode type definition to src/options.d.ts:

interface SunEditorOptions {
  // ... existing options ...
  strictMode?: boolean;
}