Refactor markup render system (#32612)

This PR removes (almost) all path tricks, and introduces "renderhelper"
package.

Now we can clearly see the rendering behaviors for comment/file/wiki,
more details are in "renderhelper" tests.

Fix #31411 , fix #18592, fix #25632 and maybe more problems. (ps: fix
#32608 by the way)

assets/go-licenses.json

@@ -1090,8 +1090,8 @@
 

	
	
	Internal Server Error - MokoGitea
	
	
	




	
		
			
				
					
						
					
				
				
					
				
			
		
		
		
			
				
				
					500 Internal Server Error
					
					
						Gitea Version: 1.26.1+244-ga8a01ed978
						
					
				
			
		
	

	
	
		const embedded = document.querySelector('.page-content .page-content.status-page-500');
		if (embedded) {
			
			const embeddedParent = embedded.parentNode;
			let main = document.querySelector('.page-content');
			main = main ?? document.querySelector('body');
			main.prepend(document.createElement('hr'));
			main.prepend(embedded);
			embeddedParent.remove(); 
		}