Courseware Dateiordner Block Darstellungsfehler

Closes #2823

Merge request studip/studip!3307

resources/assets/stylesheets/scss/courseware/blocks/files.scss

@@ -58,6 +58,7 @@
     padding: 16px 16px 16px 40px;
     background-position: 10px 16px;
     width: calc(100% - 56px);
+    min-height: 20px;
     overflow: hidden;
     text-overflow: ellipsis;