Problem:
With the helm layer, `SPC h SPC` shows:
and: Symbol’s value as variable is void: smartparens-mode
Cause:
The `SPC h SPC` helm buffer generates a section called: Toggles
It checks the status of every toggle mode.
But smartparens-mode has the define-minor-mode :init-value nil
Solution:
Check that the two non-global smartparens modes are bound and true:
smartparens-mode
smartparens-strict-mode
Note:
The smartparens global (strict) mode toggles don't need to be checked,
because they enable smartparens-(strict-)mode.