Change output for movie duration to get rid of 'per episode'

[AlexanderColen]

Add a check for MediaType.Movie and remove the 'per episode' text.

Annie-May-Discord-Bot/Annie/Utility/EmbedUtility.cs

Line 100 in 4a77b8c

.AddField("**Duration**", media.Duration != null ? $"{media.Duration} minutes per episode" : "?", true);