Fix Twitter URL format and remove redundant title meta tag

Co-authored-by: dconco <[email protected]>

Author: Copilot

index.html

@@ -6,7 +6,6 @@
 		<title>Dave Conco - Full-Stack Developer & Backend Engineer | Portfolio</title>
 
 		<!-- PRIMARY META TAGS -->
-		<meta name="title" content="Dave Conco - Full-Stack Developer & Backend Engineer | Portfolio" />
 		<meta name="author" content="Dave Conco" />
 		<meta name="developer" content="dconco" />
 		<meta name="copyright" content="Dave Conco" />
@@ -86,7 +85,7 @@
 			"telephone": "+2349064772574",
 			"sameAs": [
 				"https://github.com/dconco",
-				"https://x.com/@dave_conco",
+				"https://x.com/dave_conco",
 				"https://facebook.com/daveconco",
 				"https://youtube.com/@daveconco",
 				"https://tiktok.com/@dconco"