[web] Fix empty lines being invisible in Python script output

GitOrigin-RevId: eb4b732cae74fa050384fd4cec6bd96a9caae152

services/web/frontend/stylesheets/pages/editor/ide-redesign.scss

@@ -115,6 +115,7 @@
 .ide-redesign-python-output-pane-line {
   white-space: pre-wrap;
   word-break: break-word;
+  min-height: var(--line-height-03);
 }
 
 .ide-redesign-python-output-pane-line-info {