#3231 doc: change wording

Signed-off-by: Patrizio Bekerle <[email protected]>

Author: pbek

Diff for: CHANGELOG.md

@@ -3,7 +3,7 @@
 ## 25.2.6
 - There now is a setting to increase the API response timeout in the *AI settings*
   (for [#3231](https://github.com/pbek/QOwnNotes/pull/3231))
-- Now a loading spinner is shown in the status bar during OpenAI activity
+- Now a loading spinner is shown in the status bar during AI activity
   (for [#3231](https://github.com/pbek/QOwnNotes/pull/3231))
 
 ## 25.2.5