Problem/Motivation
It's impossible to enter edit mode with really small viewport width (below 16.5em) because the contextual toolbar tab item is unclickable (floats below an another toolbar tab)
Proposed resolution
Float the item only if the toolbar is oriented.
Remaining tasks
Reroll the patch
Add the corresponding changes to stable9 theme.
See if similar changes are needed for olivero and claro
User interface changes
Contextual toolbar tab will be similar to other tabs if viewport width is less than 16.5em.
API changes
Nothing.
Data model changes
Nothing.