[7.x] [Maps] Fix tileload error messaging / Fix heatmap error message (#30327)#30442

thomasneirynck merged 2 commits intoelastic:7.xelastic/kibana:7.xfrom

thomasneirynck:backport/7.x/pr-30327thomasneirynck/kibana:backport/7.x/pr-30327Copy head branch name to clipboard