Cleaned up `storeMessage` in mail.d

dub.json

@@ -4,7 +4,7 @@
 	],
 	"copyright": "Copyright © 2020, Tristan B. Kildaire",
 	"dependencies": {
-		"bformat": "~>1.0.7"
+		"bformat": "1.0.8"
 	},
 	"description": "Butterfly mail daemon",
 	"license": "AGPL v3",

dub.selections.json

@@ -1,6 +1,6 @@
 {
 	"fileVersion": 1,
 	"versions": {
-		"bformat": "1.0.7"
+		"bformat": "1.0.8"
 	}
 }

source/client/mail.d

@@ -89,14 +89,14 @@ public final class Mailbox
 
     public void storeMessage(Folder folder, string mailID, JSONValue mailBlock)
     {
-        /* TODO: Traverse the folder path */
+        /* Generate the filename to store the message under */
         string filename = "mailboxes/"~username~"/"~folder.folderPath~"/"~mailID;
 
+        /* Save the message to the file system */
         File mailFile;
         mailFile.open(filename, "wb");
         mailFile.rawWrite(cast(byte[])toJSON(mailBlock));
-
-        /* TODO: Store the message in file `filename` */
+        mailFile.close();
     }
 
     public void deleteMessage(Folder folder, string mailID)