⚒️ add dummy font-size for convertToTspan compat

- and add baseline

Author: etpinard

src/traces/table/plot.js

@@ -530,6 +530,7 @@ function populateCellText(cellText, tableControlView, allColumnBlock, gd) {
 
             var renderCallback = d.wrappingNeeded ? wrapTextMaker : updateYPositionMaker;
             if(d.needsConvertToTspans) {
+                selection.style('font-size', 10);
                 svgUtil.convertToTspans(selection, gd, renderCallback(allColumnBlock, element, tableControlView, gd, d));
             } else {
                 d3.select(element.parentNode)