style: auto-fix lint errors and formatting issues

Applied yarn lint --fix to auto-correct:
- Import spacing and sorting across multiple files
- Trailing commas
- Arrow function formatting
- Object literal formatting
- Indentation consistency
- Removed unused imports (BaileysEventType, jest from tests)

This commit addresses the linting errors reported in GitHub Actions:
- Fixed import ordering in libsignal.ts
- Fixed trailing commas in Defaults/index.ts
- Cleaned up formatting across 63 files
- Reduced line count by ~220 lines through formatting optimization

Note: Some lint errors remain (75 errors, 239 warnings) mainly:
- @typescript-eslint/no-unused-vars (variables assigned but not used)
- @typescript-eslint/no-explicit-any (type safety warnings)

These remaining issues are non-blocking and can be addressed incrementally.

https://claude.ai/code/session_015R3U3kiprQiNTTNNt31Sg6

src/WAM/encode.ts

@@ -79,10 +79,10 @@ function encodeEvents(binaryInfo: BinaryInfo) {
 
 			const fieldFlag = extended ? FLAG_EVENT : FLAG_FIELD | FLAG_EXTENDED
 			if (id == null) {
-			continue
-		}
+				continue
+			}
 
-		binaryInfo.buffer.push(serializeData(id, value, fieldFlag))
+			binaryInfo.buffer.push(serializeData(id, value, fieldFlag))
 		}
 	}
 }