fix: quick installation script logical error

Signed-off-by: Qi Zhang <[email protected]>

script/install-rainbond.sh

@@ -126,7 +126,7 @@ if ! (docker info &>/dev/null); then
         fi
     fi
 else
-    if docker ps -a | grep rainbond 2>&1 >/dev/null; then
+    if docker ps -a --filter "name=^rainbond$" | grep -q "rainbond"; then
         if [ "$LANG" == "zh_CN.UTF-8" ]; then
             send_error "rainbond 容器已存在.\n\t- 确保 rainbond 是否在运行.\n\t- 尝试执行 'docker start rainbond' 命令启动.\n\t- 或者你可以选择删除该容器 'docker rm -f rainbond'"
             exit 1