truncate long folder imports

closes #49

fiddles:
	as it was	https://jsfiddle.net/2cdfx47e/1/
	with change	https://jsfiddle.net/290Lgnqu/

server/assets/static/main.css

@@ -67,7 +67,6 @@ form > * {
 }
 
 table {
-  overflow: hidden;
   white-space: nowrap;
 }
 
@@ -75,6 +74,12 @@ table td {
   padding-left: calc(var(--size) * 0.5);
 }
 
+table td.text-trunc {
+  text-overflow: ellipsis;
+  overflow: hidden;
+  max-width: 0;
+}
+
 a,
 a:visited {
   color: #0064c1;