Update v4.7 release date

Author: EminGT

changelogs/index.html

@@ -156,7 +156,7 @@ <h1>Changelogs</h1>
                         <div class="apanel" style="margin-bottom: 40px; --ThemeColor: var(--VersionFourColor);">
                             <p></p>
                             <p></p>
-                            <button class="aaccordion aaversion">v4.7 - TBD, 2023</button>
+                            <button class="aaccordion aaversion">v4.7 - Jan 20, 2023</button>
                             <div class="apanel">
                                 <p></p>
                                 <p id="v452" class="cenV4"></p>