Lockscreen and Overview Search

[osamuaoki]

Feature enhancement ideas:

• base xkb for ibus feature can be made switchable
• "Lockscreen -> use base xkb" like -- https://gitlab.com/sagidayan/primary-input-on-lockscreen made switchable
• "Overview search -> use base xkb" like -- https://github.com/mechtifs/hassleless-overview-search made switchable

[osamuaoki]

As I tested, Lockscreen seems to default to IM0.
Overview isn't annoying for me.
So until someone tells me good use case, I will not add these features.

In the mean time, now I made xkb preset for ibua a user configurable feature.