Prepare 1.65 development

CHANGELOG.md

+# Version 1.65-dev (not yet released)
+
 # Version 1.64
 
 * Fixed issue with loading all records when opening a search screen or when doing an export.

info.xml

@@ -15,7 +15,7 @@
     <url desc="Licensing">http://www.gnu.org/licenses/agpl-3.0.html</url>
   </urls>
   <releaseDate>2023-03-20</releaseDate>
-  <version>1.64</version>
+  <version>1.65-dev</version>
   <develStage>stable</develStage>
   <compatibility>
     <ver>5.37</ver>