Search should be case-insensitive

[stwa]

The search is case-sensitive, it would be more intuitive if the search would be case-insensitive.
As package names are always lower-case there should not be any problems.

[clandmeter]

I was thinking of implementing this with https://www.sqlite.org/fts3.html
I still need to read-up on it this particular sqlite feature.

[ShalokShalom]

Is this still valid?

[TBK]

@ShalokShalom yes, the search is still case sensitive.

[ShalokShalom]

I mean if the issue is still on plan

[clandmeter]

This feature is still preferred, but Im not sure i have time for it now.
If you want to submit a PR that would be great.