Add keys to skim through occurrences in search mode

[taupiqueur]

Reference: https://vimhelp.org/options.txt.html#%27incsearch%27

[n0s4]

Is this just n/N, or do you mean cycling through them while searching?

[Omnikar]

Is this just n/N, or do you mean cycling through them while searching?

See https://matrix.to/#/!zMuVRxoqjyxyjSEBXc:matrix.org/$8jRjSwtkbLRDoMHXSR0FfQVLP-ZZtmnPUOpzightecs?via=matrix.org&via=mozilla.org&via=tchncs.de

[pascalkuthe]

Closing in favor of https://github.com/helix-editor/helix/issues/4798