restore the old value for SID_ATTR_ZOOM

regression from 6484ccb4,
can be seen for example in Writer's page preview mode, changing zoom
by a mouse wheel does not update the zoom slider.

these slot ids are sometimes collected into an array to pass to
SfxBindings::Invalidate(sal_uInt16*), which requires a _sorted_ array,
so let's not modify the values and break the sort order.

Change-Id: I9cb59a6eed2f19dfb3a308d7654d8b0b1779ae6b

sfx2/inc/sfx2/sfxsids.hrc

@@ -173,7 +173,7 @@
 #define ID_FILETP_READONLY                      (ID_FILETP_START + 0)
 #define ID_FILETP_TITLE                     (ID_FILETP_START + 1)
 
-#define SID_ATTR_ZOOM                      (SID_SVX_START + 1419)
+#define SID_ATTR_ZOOM                      (SID_SVX_START + 0)
 
 #define SID_EXPLORER_PROPS_START            (SID_SFX_START + 1410)
 //      SID_EXPLORER_PROPS_END              (SID_SFX_START + 1499)