Merge branch '633-table-header' into 'devel_12.1.x'

word wrapping for Firefox fixed; word wrapping is disabled for xolumns that don't require it

See merge request minerva/core!571

frontend-js/src/main/css/global.css

@@ -847,8 +847,15 @@ https://www.w3schools.com/css/tryit.asp?filename=trycss_tooltip
     overflow-x: hidden;
 }
 
-.minerva-overlay-panel td, .minerva-overlay-panel th {
-    word-break: break-word;
+.minerva-overlay-panel td.word_wrap, .minerva-overlay-panel th.word_wrap {
+    /* For Firefox */
+    white-space: pre-wrap;
+    word-break: break-all;
+
+    /* For Chrome */
+    word-wrap: break-word;
+
+    min-width: 50px;
 }
 
 .pileup-root .controls input[type="text"] {

frontend-js/src/main/js/gui/leftPanel/OverlayPanel.js

@@ -582,7 +582,8 @@ OverlayPanel.prototype.init = function () {
       type: 'num',
       className: "no_padding"
     }, {
-      title: 'Name'
+      title: 'Name',
+      className: "word_wrap"
     }, {
       title: 'View',
       orderable: false,