Modify result display for add command

[xGladiate]

Modify the result display of add command

1. Add the details of the delivery in the result display when the add command is used in the inspection window
   

2. Modify the layout of result display from add command to make it more consistent with the result display for other commands
   

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
.../java/seedu/address/logic/commands/AddCommand.java	0.00%	3 Missing ⚠️

Files with missing lines	Coverage Δ	Complexity Δ
.../java/seedu/address/logic/commands/AddCommand.java	72.72% <0.00%> (-3.47%)	11.00 <0.00> (ø)