Hide Blockly on Success/Failure

Hiding Blockly the way that the closeBlocklyBtn functionality works. @BrettASwift @kadst43 
Nope... Uncaught TypeError: Cannot read property 'ID' of undefined source/index.js:41
selectBlocklyTab source/index.js:41

... which is this line "vwf_view.kernel.setProperty( graphLines[ "blocklyLine" ].ID, "visible", showLine );" which I haven't done anything with. Unintended consequences of the property being set surely