Change spacing for file addition; larger comment block; top label

Add padding to file input not the close button. This groups the clear
button with its file input.

Comment block becomes larger.

In table layout, make header and data align to top of cell.
Add padding to in table headers, makes the rows easier to scan.

Author: rouilj

website/issues/html/issue.item.html

@@ -416,7 +416,7 @@
                                 /* lighter color */
                              background: rgba(255,255,255,0.4);
                           }
-		button.clearButton, input.fileDesc {margin-block-end: 0.5em}
+		input[id$=\@content], input.fileDesc {margin-block-end: 0.5em}
               </style>
 
 <p tal:condition="context/id" i18n:translate="">

website/issues/html/style.css

@@ -153,13 +153,19 @@ table
 
 table:not(.list) th {
     text-align: left;
+    padding-block-end: 0.75em;
+}
+
+table textarea {
+    width: 99%;
 }
 
 table th[colspan] {
     text-align: center;
 }
 /* Need some space between content of Issue List columns */
-td, th { padding-left: 1em; }
+td, th { padding-left: 1em;
+	 vertical-align: top; }
 
 tr.odd { background-color:#f5f5f5; }