Description:
While trying to work on another bug about Help I noticed a strange thing.  For both my local offline 7.1 and online 7.2 help, the search box for indices on the left part of the help page would put certain bookmarks/keywords in the wrong module.

Steps to reproduce:
1. Open any offline help page, or go to https://help.libreoffice.org/7.2/ which will be redirected to https://help.libreoffice.org/7.2/en-US/text/shared/05/new_help.html ;
2. Type "toolbar" in the Index search box at the left;
3. See that "fixing toolbars", "placing toolbars", "toolbars -- viewing/closing" and many other entries listed under "BASIC" module.  However, they all link to page https://help.libreoffice.org/7.2/en-US/text/shared/guide/floating_toolbar.html and should be listed in "GLOBAL" instead;
4. Similarly, "curves -- toolbar" is also listed in "BASIC", and should be in "IMPRESS" instead since it links to https://help.libreoffice.org/7.2/en-US/text/simpress/02/10080000.html . On the other hand, "toolbars -- curves" is in the correct "IMPRESS" module and links to the same page.