docs(new): migrate Touchscreen docs to TSDoc (#6087)

Co-authored-by: martinsplitt <martin@geekonaut.de>

new-docs/puppeteer.md

@@ -33,7 +33,7 @@
 |  [SecurityDetails](./puppeteer.securitydetails.md) | The SecurityDetails class represents the security details of a response that was received over a secure connection. |
 |  [Target](./puppeteer.target.md) |  |
 |  [TimeoutError](./puppeteer.timeouterror.md) | TimeoutError is emitted whenever certain operations are terminated due to timeout. |
-|  [Touchscreen](./puppeteer.touchscreen.md) |  |
+|  [Touchscreen](./puppeteer.touchscreen.md) | The Touchscreen class exposes touchscreen events. |
 |  [Tracing](./puppeteer.tracing.md) |  |
 |  [WebWorker](./puppeteer.webworker.md) | The WebWorker class represents a [WebWorker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API)<!-- -->. |
 

new-docs/puppeteer.touchscreen._constructor_.md

@@ -1,21 +0,0 @@
-<!-- Do not edit this file. It is automatically generated by API Documenter. -->
-
-[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Touchscreen](./puppeteer.touchscreen.md) &gt; [(constructor)](./puppeteer.touchscreen._constructor_.md)
-
-## Touchscreen.(constructor)
-
-Constructs a new instance of the `Touchscreen` class
-
-<b>Signature:</b>
-
-```typescript
-constructor(client: CDPSession, keyboard: Keyboard);
-```
-
-## Parameters
-
-|  Parameter | Type | Description |
-|  --- | --- | --- |
-|  client | [CDPSession](./puppeteer.cdpsession.md) |  |
-|  keyboard | [Keyboard](./puppeteer.keyboard.md) |  |
-

new-docs/puppeteer.touchscreen.md

@@ -4,17 +4,17 @@
 
 ## Touchscreen class
 
+The Touchscreen class exposes touchscreen events.
+
 <b>Signature:</b>
 
 ```typescript
 export declare class Touchscreen 
 ```
 
-## Constructors
+## Remarks
 
-|  Constructor | Modifiers | Description |
-|  --- | --- | --- |
-|  [(constructor)(client, keyboard)](./puppeteer.touchscreen._constructor_.md) |  | Constructs a new instance of the <code>Touchscreen</code> class |
+The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `Touchscreen` class.
 
 ## Properties
 
@@ -27,5 +27,5 @@ export declare class Touchscreen
 
 |  Method | Modifiers | Description |
 |  --- | --- | --- |
-|  [tap(x, y)](./puppeteer.touchscreen.tap.md) |  |  |
+|  [tap(x, y)](./puppeteer.touchscreen.tap.md) |  | Dispatches a <code>touchstart</code> and <code>touchend</code> event. |
 

new-docs/puppeteer.touchscreen.tap.md

@@ -4,6 +4,8 @@
 
 ## Touchscreen.tap() method
 
+Dispatches a `touchstart` and `touchend` event.
+
 <b>Signature:</b>
 
 ```typescript
@@ -14,8 +16,8 @@ tap(x: number, y: number): Promise<void>;
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  x | number |  |
-|  y | number |  |
+|  x | number | Horizontal position of the tap. |
+|  y | number | Vertical position of the tap. |
 
 <b>Returns:</b>
 

src/common/Input.ts

@@ -238,18 +238,25 @@ export class Mouse {
   }
 }
 
+/**
+ * The Touchscreen class exposes touchscreen events.
+ */
 export class Touchscreen {
   _client: CDPSession;
   _keyboard: Keyboard;
 
+  /**
+   * @internal
+   */
   constructor(client: CDPSession, keyboard: Keyboard) {
     this._client = client;
     this._keyboard = keyboard;
   }
 
   /**
-   * @param {number} x
-   * @param {number} y
+   * Dispatches a `touchstart` and `touchend` event.
+   * @param x - Horizontal position of the tap.
+   * @param y - Vertical position of the tap.
    */
   async tap(x: number, y: number): Promise<void> {
     // Touches appear to be lost during the first frame after navigation.