fix attachment deletion crash bug

Reduce bits of common bits in theme stylesheets.

routes/attachments.go

@@ -92,8 +92,10 @@ func deleteAttachment(w http.ResponseWriter, r *http.Request, user c.User, aid i
 	err := c.DeleteAttachment(aid)
 	if err == sql.ErrNoRows {
 		return c.NotFoundJSQ(w, r, nil, js)
-	}
+	} else if err != nil {
 		return c.InternalErrorJSQ(err, w, r, js)
+	}
+	return nil
 }
 
 // TODO: Stop duplicating this code

themes/nox/public/main.css

@@ -258,12 +258,12 @@ li a {
 }
 
 h1, h2, h3, h4, h5 {
-	-webkit-margin-before: 0;
-	-webkit-margin-after: 0;
-	margin-block-start: 0;
-	margin-block-end: 0;
-	margin-top: 0px;
-	margin-bottom: 0px;
+	-webkit-margin-before:0;
+	-webkit-margin-after:0;
+	margin-block-start:0;
+	margin-block-end:0;
+	margin-top:0;
+	margin-bottom:0;
 	font-weight: normal;
 	white-space: nowrap;
 }

themes/shadow/public/main.css

@@ -163,7 +163,6 @@ a {
 .rowblock:not(.opthead):not(.colstack_head):not(.rowhead) .rowitem {
 	font-size: 15px; /*16px*/
 }
-
 .rowblock:last-child, .colstack_item:last-child {
 	padding-bottom: 10px;
 }
@@ -179,12 +178,12 @@ a {
 	display: inline;
 }
 h1, h2, h3, h4, h5 {
-	-webkit-margin-before: 0;
-	-webkit-margin-after: 0;
-	margin-block-start: 0;
-	margin-block-end: 0;
-	margin-top: 0px;
-	margin-bottom: 0px;
+	-webkit-margin-before:0;
+	-webkit-margin-after:0;
+	margin-block-start:0;
+	margin-block-end:0;
+	margin-top:0;
+	margin-bottom:0;
 	font-weight: normal;
 }
 .rowsmall {

themes/tempra_simple/public/main.css

@@ -264,10 +264,10 @@ main > *:last-child {
 	margin-left: 4px;
 }
 h1, h2, h3, h4, h5 {
-	-webkit-margin-before: 0;
-	-webkit-margin-after: 0;
-	margin-block-start: 0;
-	margin-block-end: 0;
+	-webkit-margin-before:0;
+	-webkit-margin-after:0;
+	margin-block-start:0;
+	margin-block-end:0;
 	font-weight: normal;
 }