Code quality and consistency improvements

Here's all the changes I've made in this commit:
- Resolves FS-44 (AutoEject.java)
- Resolves FS-45 (BlockBlocker.java)
- Resolves FS-47 and FS-48 (InteractBlocker.java)
- Resolves FS-49 (Command_cage.java)
- Resolves FS-50 (Command_manageshop.java)
- Resolves FS-51 (Command_notes.java)
- Resolves FS-52 (Command_potion.java)
- Resolves FS-53 (Command_tag.java)
- Resolves FS-55 (ItemFun.java)
- Resolves FS-56 (Module_list.java)
- Resolves FS-57 (Module_players.java)
- Removes redundant code from InteractBlocker.java
- Misc. code consistency corrections (global)

src/main/java/me/totalfreedom/totalfreedommod/fun/ItemFun.java

@@ -304,6 +304,11 @@ public class ItemFun extends FreedomService
                 }
                 break;
             }
+            default:
+            {
+                // Do nothing
+                break;
+            }
         }
     }