url decode the search index pattern

[tuziben]

Description

Trying to fix this issue #4291

How was this PR tested?

Describe how you tested this PR.

[fmassot]

@tuziben indeed warp does not decode the path string, we have to do it ourselves.
Can we use percent_decode from this crate instead of the urlencoding crate?

[tuziben]

@tuziben indeed warp does not decode the path string, we have to do it ourselves. Can we use percent_decode from this crate instead of the urlencoding crate?

OK, I will refine this part.

[fmassot]

Thanks @tuziben !