Update CSS rules for cursor. (#3627)

core/css.js

@@ -340,6 +340,10 @@ Blockly.Css.CONTENT = [
     'z-index: 20;',
   '}',
 
+  '.blocklyText text {',
+    'cursor: default;',
+  '}',
+
   /*
     Don't allow users to select text.  It gets annoying when trying to
     drag a block and selected text moves instead.

core/renderers/common/constants.js

@@ -1041,7 +1041,6 @@ Blockly.blockRendering.ConstantProvider.prototype.getCSS_ = function(name) {
     /* eslint-disable indent */
     // Fields.
     selector + ' .blocklyText {',
-      'cursor: default;',
       'fill: #fff;',
       'font-family: ' + this.FIELD_TEXT_FONTFAMILY + ';',
       'font-size: ' + this.FIELD_TEXT_FONTSIZE + 'pt;',

core/renderers/zelos/constants.js

@@ -855,7 +855,6 @@ Blockly.zelos.ConstantProvider.prototype.getCSS_ = function(name) {
     /* eslint-disable indent */
     // Fields.
     selector + ' .blocklyText {',
-      'cursor: default;',
       'fill: #fff;',
       'font-family: ' + this.FIELD_TEXT_FONTFAMILY + ';',
       'font-size: ' + this.FIELD_TEXT_FONTSIZE + 'pt;',