[1.x] Add sail open command. (#551)

* Add `sail open` to open the `APP_URL` on the browser.

* Update sail

* Update sail

---------

Co-authored-by: Taylor Otwell <taylor@laravel.com>

Author: xiCO2k

bin/sail

@@ -96,6 +96,7 @@ function display_help {
     echo
     echo "${YELLOW}Sharing:${NC}"
     echo "  ${GREEN}sail share${NC}   Share the application publicly via a temporary URL"
+    echo "  ${GREEN}sail open${NC}    Open the site in your browser"
     echo
     echo "${YELLOW}Binaries:${NC}"
     echo "  ${GREEN}sail bin ...${NC}   Run Composer binary scripts from the vendor/bin directory"
@@ -494,6 +495,18 @@ elif [ "$1" == "share" ]; then
         sail_is_not_running
     fi
 
+# Open the site...
+elif [ "$1" == "open" ]; then
+    shift 1
+
+    if [ "$EXEC" == "yes" ]; then
+        open $APP_URL
+
+        exit
+    else
+        sail_is_not_running
+    fi
+
 # Pass unknown commands to the "docker-compose" binary...
 else
     ARGS+=("$@")