implement notes on object/surface/column
install favicon
separate page/item/text/cat dropdown into two buttons
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implement sort-final-field

note that sortable subgenre_remarks is wrong; we need to have explicit
composition/part fields to display/sort on in such cases
fix nesting=9 bug (probably would never have been triggered)
remove debugging dump
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fix inter-page links
build in 01tmp/dev and call test 02www/_test in prep for esp-live