front: fix wrong display in timetable

Signed-off-by: theocrsb <[email protected]>

Author: theocrsb

front/src/styles/scss/applications/operationalStudies/_scenario.scss

@@ -478,6 +478,7 @@
           box-shadow: inset 0 -0.063rem 0 0 rgba(0, 0, 0, 0.25);
 
           .clickable-button {
+            width: 100%;
             padding: 0.75rem 0;
           }