refactor: remove IP address judgment for device management (#6275)

#### What type of PR is this?
/kind bug
/area core
/milestone 2.18.x

#### What this PR does / why we need it:
设备管理去除 IP 地址检查以避免频繁登录

#### Does this PR introduce a user-facing change?
```release-note
设备管理去除 IP 地址检查以避免频繁登录
```

application/src/main/java/run/halo/app/security/device/DeviceServiceImpl.java

@@ -100,10 +100,7 @@ private Mono<Device> updateExistingDevice(ServerWebExchange exchange) {
                     var userAgent =
                         exchange.getRequest().getHeaders().getFirst(HttpHeaders.USER_AGENT);
                     var deviceUa = existingDevice.getSpec().getUserAgent();
-                    var ipAddr = existingDevice.getSpec().getIpAddress();
-                    var clientIp = getClientIp(exchange.getRequest());
-                    if (!StringUtils.equals(deviceUa, userAgent)
-                        || !StringUtils.equals(clientIp, ipAddr)) {
+                    if (!StringUtils.equals(deviceUa, userAgent)) {
                         // User agent changed, create a new device
                         return Mono.empty();
                     }