Update tagline to 'for SQL Server'

Changed the tagline in csv-social.html and csv.html from 'for Database Professionals' to 'for SQL Server' to better target the intended audience.

Author: potatoqualitee

csv-social.html

@@ -262,7 +262,7 @@
                 <h1>
                     <span class="gradient-text">High-Performance</span> <span class="white-text">CSV</span>
                 </h1>
-                <h2>for Database Professionals</h2>
+                <h2>for SQL Server</h2>
             </div>
 
             <div class="badge">

csv.html

@@ -820,7 +820,7 @@
 
         <h1>
             <span class="gradient-text">High-Performance</span> CSV<br>
-            for Database Professionals
+            for SQL Server
         </h1>
 
         <p>