error when setting `search_engine = false`

[CarloLucibello]

If I set

MultiDocumenter.make(
    outpath,
    docs;
    search_engine = false,
)

I get the following error

ERROR: LoadError: TaskFailedException

    nested task error: type Bool has no field engine
    Stacktrace:
     [1] getproperty
       @ ./Base.jl:49 [inlined]
     [2] make_global_nav(dir::String, docs::Vector{…}, thispagepath::String, brand_image::MultiDocumenter.BrandImage, search_engine::Bool, prettyurls::Bool)
       @ MultiDocumenter ~/.julia/packages/MultiDocumenter/ViaJG/src/MultiDocumenter.jl:344
     [3] (::MultiDocumenter.var"#23#25"{…})()
       @ MultiDocumenter ~/.julia/packages/MultiDocumenter/ViaJG/src/MultiDocumenter.jl:482

...and 70 more exceptions.

Stacktrace:
 [1] sync_end(c::Channel{Any})
   @ Base ./task.jl:466
 [2] macro expansion
   @ ./task.jl:499 [inlined]
 [3] inject_styles_and_global_navigation(dir::String, docs::Vector{…}, brand_image::MultiDocumenter.BrandImage, custom_stylesheets::Vector{…}, custom_scripts::Vector{…}, search_engine::Bool, prettyurls::Bool, rootpath::String)
   @ MultiDocumenter ~/.julia/packages/MultiDocumenter/ViaJG/src/MultiDocumenter.jl:437
 [4] make(outdir::String, docs::Vector{…}; assets_dir::Nothing, brand_image::MultiDocumenter.BrandImage, custom_stylesheets::Vector{…}, custom_scripts::Vector{…}, search_engine::Bool, prettyurls::Bool, rootpath::String, hide_previews::Bool, canonical_domain::Nothing, sitemap::Bool, sitemap_filename::String, _override_windows_isinteractive_check::Bool)
   @ MultiDocumenter ~/.julia/packages/MultiDocumenter/ViaJG/src/MultiDocumenter.jl:209
 [5] top-level scope
   @ ~/.julia/dev/GraphNeuralNetworks/docs/make-multi.jl:31
 [6] include(fname::String)
   @ Main ./sysimg.jl:38
 [7] top-level scope
   @ REPL[5]:1