[Chapel Merge] Change mason init to default to application

Branch: refs/heads/main
Revision: cc04fc1
Author: bmcdonald3
Link: Unavailable
Log Message:

Merge pull request #20369 from bmcdonald3/mason-init-app

Change mason init to default to application

[ trivial, not reviewed ]

Mason init was incorrectly referring to mason "packages", I had
apparently forgotten to update that name to application, so
this PR fixes that by changing the "package" references to
say "application" instead.

Modified Files:
M tools/mason/MasonInit.chpl

M tools/mason/MasonNew.chpl
M tools/mason/MasonRun.chpl

Compare: https://github.com/chapel-lang/chapel/compare/50e82013c384...cc04fc1e9c09