Add set -e to all scripts

.ms-manager/detect_server.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-
+set -e
 # Detect the server type
 function get_existing_server {
   if ls paper-*.jar 1> /dev/null 2>&1; then

.ms-manager/java.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-
+set -e
 # Setup Java
 function setup_java {
   # Get the required Java version for the Minecraft version

.ms-manager/paper.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-
+set -e
 # API URL
 api_url="https://api.papermc.io/v2/projects/paper/versions/$version/builds"