Add new entry in XML files for Argon2 memory cost. Increment version to 1.26.25

src/Common/Language.xml

@@ -1646,6 +1646,7 @@
     <entry lang="en" key="INSECURE_MODE">[INSECURE MODE]</entry>
     <entry lang="en" key="IDC_DISABLE_SCREEN_PROTECTION">Disable protection against screenshots and screen recording</entry>
     <entry lang="en" key="DISABLE_SCREEN_PROTECTION_WARNING">WARNING: Disabling screen protection significantly reduces security. Enable this option ONLY if you have a specific need to capture VeraCrypt's interface. This may expose sensitive data to screenshot tools and screen recording features such as Windows 11 Recall.</entry>
+    <entry lang="en" key="MEMORY_COST">Memory Cost</entry>
   </localization>
   <xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
     <xs:element name="VeraCrypt">