🐛 Bug Fix
- Mobile / adaptive toolbar: with a custom
buttonslist and the defaultbuttonsMD/buttonsSM/buttonsXS, resizing the editor narrower surfaced buttons that were never requested — the breakpoint sets are group-based defaults independent ofbuttons. The responsive breakpoint set is now constrained tobuttons: resizing only ever drops buttons, never adds ones outsidebuttons. SetbuttonsMD/buttonsSM/buttonsXSexplicitly if you want a different per-breakpoint set. The default configuration (wherebuttonsis the full superset) is unchanged. Fixes #1389.