Update z-index of tooltips

package.json

@@ -10,7 +10,8 @@
     "e2e": "ng e2e",
     "lib-build": "ng build --prod kypo2-trainings-visualization-overview-lib && cp ./src/styles.scss ./dist/kypo2-trainings-visualization-overview-lib",
     "lib-copy": "cp -a ./dist/kypo2-trainings-visualization-overview-lib/. ../kypo2-trainings-visualization-overview-package/",
-    "lib-push": "cd ../kypo2-trainings-visualization-overview-package && git add . && git commit -m 'Update according to master branch' && git push" 
+    "lib-push": "cd ../kypo2-trainings-visualization-overview-package && git add . && git commit -m 'Update according to master branch' && git push",
+    "lib-build-and-push": "npm run lib-build && npm run lib-copy && npm run lib-push"
   },
   "private": true,
   "dependencies": {

src/styles.scss

@@ -204,6 +204,7 @@
 
 .player-tooltip {
   position: absolute;
+  z-index: 1;
   text-align: center;
   padding: 2px;
   font: 12px "Helvetica Neue", Helvetica, Arial, sans-serif;
@@ -219,6 +220,7 @@
 
 .score-progress-tooltip {
   position: absolute;
+  z-index: 1;
   text-align: center;
   padding: 8px;
   font: 12px "Helvetica Neue", Helvetica, Arial, sans-serif;
@@ -229,6 +231,7 @@
 
 .score-progress-line-tooltip {
   position: absolute;
+  z-index: 1;
   text-align: center;
   padding: 8px;
   font: 12px "Helvetica Neue", Helvetica, Arial, sans-serif;