Fixes some savage fail problems

Fixes item not being returned when salvage fails
Removes some redundancy when giving back items
Makes extended salvage return 50% of the salvage (no items if only one item would be returned)
Adds a better message when failing to salvage extended salvage items
Fixes a bug in the caching of smith presets

src/main/resources/config.yml

@@ -202,6 +202,9 @@ scrapper:
       # The message to display when the scrapper fails to salvage an item
       failSalvageMessage: "&cWhoops! The item broke! Maybe next time?"
       
+      # The message to display when the scrapper fails to salvage an item without durability
+      failExtendedSalvageMessage: "&cWhoops! I was unable to extract much, if any, salvage! Maybe next time?"
+      
       # The message to display when presenting a different item than the one just evaluated
       itemChangedMessage: "&cThat's not the item you wanted to salvage before!"