websocket: Clean up HTML structure

in WebSocket tab docs

Standardized the HTML structure in the WebSocket tab documentation (`tab.html`).
- Wrapped all body text, including descriptions under H3 and H4 headings, within `<p>` tags for consistent paragraph formatting.
- Removed extraneous `<br />` tags and blank lines to clean up the source code.

Signed-off-by: Umoxfo <[email protected]>

Author: Umoxfo

addOns/websocket/src/main/javahelp/org/zaproxy/zap/extension/websocket/resources/help/contents/tab.html

@@ -17,40 +17,50 @@ <H1>WebSocket tab</H1>
 
 <h2>Filters</h2>
 	<h3>Channel Selector</h3>
+	<p>
 		You can restrict the display of messages to one specific WebSocket
 		channel or all.
 		<br>
 		If you select a specific channel, then the <i>Show handshake</i> button
 		(<img src="images/handshake.png" align="bottom" width="16" height="16" />)
 		becomes enabled. When you click on it, the corresponding HTTP handshake is
 		shown in the Request/Response tab.
+	</p>
 
 	<h3>Filter Dialog</h3>
+	<p>
 		In the filter dialog (<img src="images/054.png" align="bottom" width="16" height="16" />)
 		you can further control which messages are displayed.
+	</p>
 
-<br><br>
 <h2>Breakpoints</h2>
+<p>
 	You can set custom breakpoints using the <i>Add Custom Breakpoints</i>
 	button (<img src="images/break_add.png" align="bottom" width="16" height="16" />).
 	<br>
 	Alternatively you can use the <i>Right click menu</i>.
+</p>
 
-<br><br>
 <h2>Right click menu</h2>
+<p>
 	Right clicking on a WebSocket message will bring up a menu which will
 	allow you to:
+</p>
 
 	<H3>Exclude from WebSocket</H3>
+	<p>
 		WebSocket connections can be excluded from the WebSockets tab by adding
 		an excluded URL to the
 		<i>Session Properties</i>. Clicking on
 		this item, brings up the session properties with the URL pre-filled.
 		Excluding a WebSocket connection will not result in closing the
 		connection, but in forwarding them without further processing.
+	</p>
 
 	<H3>Break...</H3>
+	<p>
 		This will bring up the
 		<i>Add Break Point dialog</i> which allows you to set up a custom break point.
+	</p>
 </BODY>
 </HTML>