Implement :case-tree in repl

[ice1000]

[codecov]

Codecov Report

Attention: Patch coverage is 90.90909% with 1 line in your changes missing coverage. Please review.

Project coverage is 83.48%. Comparing base (90bf168) to head (8444d24).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...x/src/main/java/org/aya/prettier/CorePrettier.java	87.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1287   +/-   ##
=========================================
  Coverage     83.48%   83.48%           
- Complexity     4258     4259    +1     
=========================================
  Files           386      386           
  Lines         12337    12338    +1     
  Branches       1424     1425    +1     
=========================================
+ Hits          10299    10300    +1     
  Misses         1285     1285           
  Partials        753      753           

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