Every reused picker anchors its panel to its own trigger, so the band clipped
it: the table grid showed one row of eight. `pinPanels`, one action on the
band, pins whatever panel mounts inside it, and panels now drop below the whole
band instead of over the controls under them.
Their triggers also kept the classic toolbar's compact box, so Table, Symbol
and Date & time were half the size of the buttons beside them. `.rb-captioned`
moves to global.css, replacing four copies, and gives the trigger the big
button's 34px box, a 28px glyph and the ribbon's own hover and open tints.
Steffen Becker
7db9cc96b3