docs: remove navigation emojis

Author: TomCools

docs/src/modules/ROOT/nav.adoc

@@ -8,21 +8,21 @@
 *** xref:quickstart/spring-boot/spring-boot-quickstart.adoc[Spring Boot Guide]
 ** xref:quickstart/service/getting-started.adoc[Run as a service (Preview)]
 * Example use cases
-** xref:quickstart/quarkus-vehicle-routing/quarkus-vehicle-routing-quickstart.adoc[🚚 Vehicle Routing (Guide)]
-** https://github.com/TimefoldAI/timefold-quickstarts#-employee-scheduling[🧑‍💼 Employee Scheduling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-maintenance-scheduling[🛠️ Maintenance Scheduling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-food-packaging[📦 Food Packaging]
-** https://github.com/TimefoldAI/timefold-quickstarts#-order-picking[🛒 Order Picking]
-** https://github.com/TimefoldAI/timefold-quickstarts#-school-timetabling[🏫 School Timetabling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-facility-location-problem[🏭 Facility Location]
-** https://github.com/TimefoldAI/timefold-quickstarts#-conference-scheduling[🎤 Conference Scheduling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-bed-allocation-scheduling[🛏️ Bed Allocation]
-** https://github.com/TimefoldAI/timefold-quickstarts#-flight-crew-scheduling[🛫 Flight Crew Scheduling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-meeting-scheduling[👥 Meeting Scheduling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-task-assigning[✅ Task Assigning]
-** https://github.com/TimefoldAI/timefold-quickstarts#-project-job-scheduling[📆 Project Job Scheduling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-sports-league-scheduling[🏆 Sports League Scheduling]
-** https://github.com/TimefoldAI/timefold-quickstarts#-tournament-scheduling[🏅 Tournament Scheduling]
+** xref:quickstart/quarkus-vehicle-routing/quarkus-vehicle-routing-quickstart.adoc[Vehicle Routing (Guide)]
+** https://github.com/TimefoldAI/timefold-quickstarts#-employee-scheduling[Employee Scheduling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-maintenance-scheduling[Maintenance Scheduling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-food-packaging[Food Packaging]
+** https://github.com/TimefoldAI/timefold-quickstarts#-order-picking[Order Picking]
+** https://github.com/TimefoldAI/timefold-quickstarts#-school-timetabling[School Timetabling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-facility-location-problem[Facility Location]
+** https://github.com/TimefoldAI/timefold-quickstarts#-conference-scheduling[Conference Scheduling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-bed-allocation-scheduling[Bed Allocation]
+** https://github.com/TimefoldAI/timefold-quickstarts#-flight-crew-scheduling[Flight Crew Scheduling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-meeting-scheduling[Meeting Scheduling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-task-assigning[Task Assigning]
+** https://github.com/TimefoldAI/timefold-quickstarts#-project-job-scheduling[Project Job Scheduling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-sports-league-scheduling[Sports League Scheduling]
+** https://github.com/TimefoldAI/timefold-quickstarts#-tournament-scheduling[Tournament Scheduling]
 * Using Timefold Solver
 ** xref:using-timefold-solver/overview.adoc[leveloffset=+1]
 ** xref:using-timefold-solver/configuration.adoc[leveloffset=+1]