fix: Guess 'app' as the source path

appmap-ruby will now expand paths like 'app' to include all sub-packages.
There's no need to list app/models, app/controllers, etc individually.

Author: kgilpin

lib/appmap/service/guesser.rb

@@ -3,7 +3,7 @@
 module AppMap
   module Service
     class Guesser
-      POSSIBLE_PATHS = %w[app/controllers app/models lib]
+      POSSIBLE_PATHS = %w[app lib]
       class << self
         def guess_name
           return Pathname.new(`git rev-parse --show-toplevel`.strip).basename.to_s if File.directory?('.git')