docs: fix typos in typings, tests, and core comments

- addon-clipboard: "Note that this" instead of duplicate "this"
- addon-webgl: remove stray "the" before "a" in event JSDoc
- SharedRendererTests: duplicate "the" in test title
- Types: "protocol" spelling in CoreMouseEncoding JSDoc
- InputHandler: "a replacement char" article fix

Co-authored-by: Cursor <cursoragent@cursor.com>

src/common/InputHandler.ts

@@ -550,7 +550,7 @@ export class InputHandler extends Disposable implements IInputHandler {
 
       // get charset replacement character
       // charset is only defined for ASCII, therefore we only
-      // search for an replacement char if code < 127
+      // search for a replacement char if code < 127
       if (code < 127 && charset) {
         const ch = charset[String.fromCharCode(code)];
         if (ch) {

src/common/Types.ts

@@ -234,7 +234,7 @@ export interface ICoreMouseProtocol {
 /**
  * CoreMouseEncoding
  * The tracking encoding can be registered and activated at the MouseStateService.
- * If a ICoreMouseEvent passes all procotol restrictions it will be encoded
+ * If a ICoreMouseEvent passes all protocol restrictions it will be encoded
  * with the active encoding and sent out.
  * Note: Returning an empty string will supress sending a mouse report,
  * which can be used to skip creating falsey reports in limited encodings