refactor: rename core.stringhelpers to core.strings.helpers

src/app/app.filebrowser.pas

@@ -28,7 +28,7 @@ uses
     proc.mgr,
     proc.types,
     core.strings,
-    core.stringhelpers,
+    core.strings.helpers,
     core.gfx.fileicons,
     io.syslog,
     debug.tracer,