Variable GANTT_ZOOM_LEVEL_NAMES`Const`

GANTT_ZOOM_LEVEL_NAMES: readonly [
    "hour",
    "day",
    "week",
    "month",
    "quarter",
    "year",
] = ...

Discrete DHTMLX zoom levels, most-zoomed-in first. gantt.ext.zoom.zoomIn() decreases the index; zoomOut() increases it.