AS a user I should be able to view a specific moon #430

AS a user I should be able to view a specific moon
SO THAT I can get further details on it

Acceptance Criteria

AS a user
GIVEN I want to view a specific moon's details
WHEN I type /moons view <id>
THEN I should see the details for this moon

AS a user
GIVEN I don't supply an id
WHEN I type the command in
THEN it should error

AS a user
GIVEN I supply an id that's invalid
WHEN I type the command in
THEN it should error

Subtasks

• Create moons view command
• Update tests

Notes

• An invalid ID is an ID that doesn't exist or a moon which doesn't belong to me
• The details it should give me are: ID, Name, When Added