Added the expand option to the internalSearch implementation for content

[mpecan]

Background

The internal content search implementation currently does not propagate the "expand" option to the underlying query. This does not allow the user to pass that parameter in.

I adjusted the appropriate tests.

[codecov]

Codecov Report

Merging #182 (1c3a198) into main (97f115d) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #182   +/-   ##
=======================================
  Coverage   85.79%   85.80%           
=======================================
  Files         125      125           
  Lines       10674    10677    +3     
=======================================
+ Hits         9158     9161    +3     
  Misses        857      857           
  Partials      659      659           

Impacted Files	Coverage Δ
confluence/internal/search_impl.go	93.65% <100.00%> (+0.31%)	⬆️

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[ctreminiom]

Hi @mpecan,

I just wanted to give you a quick shoutout and say thanks for your contribution. You're right, the expand tag was not propagating the values on the endpoint.

Merging the changes...