Compact detection source tile rows

frontend/src/styles/app.css

@@ -1043,6 +1043,10 @@ section th {
   line-height: 1;
 }
 
+.source-tile-cell {
+  white-space: nowrap;
+}
+
 .workbench-inspector .job-result,
 .workbench-inspector pre {
   max-height: 16rem;