fix: config set/remove should tell what file it edits

[maxandersen]

fixes #1184

[codecov]

Codecov Report

Merging #1188 (fc4f563) into main (fd729a1) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##               main    #1188   +/-   ##
=========================================
  Coverage     59.06%   59.06%           
  Complexity     1052     1052           
=========================================
  Files            84       84           
  Lines          5572     5572           
  Branches        936      936           
=========================================
  Hits           3291     3291           
  Misses         1798     1798           
  Partials        483      483           

Flag	Coverage Δ
Linux	57.89% <100.00%> (ø)
Windows	57.80% <100.00%> (ø)

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Impacted Files	Coverage Δ
src/main/java/dev/jbang/cli/Config.java	48.86% <100.00%> (ø)

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[quintesse]

LGTM