Fix the problem of not redirecting to corresponding login page after …

…authentication failure (#6896)

#### What type of PR is this?

/kind bug
/area core
/milestone 2.20.x

#### What this PR does / why we need it:

This PR appends query `method=local` after redirection location in authentication failure handler to redirect to login page with local method.

#### Which issue(s) this PR fixes:

Fixes #6894

#### Does this PR introduce a user-facing change?

```release-note
修复非默认登录方式登录失败之后跳转至默认登录方式的问题
```

application/src/main/java/run/halo/app/security/authentication/login/UsernamePasswordHandler.java

@@ -65,12 +65,12 @@ public Mono<Void> onAuthenticationFailure(WebFilterExchange webFilterExchange,
                 .filter(ServerWebExchangeMatcher.MatchResult::isMatch)
                 .switchIfEmpty(Mono.defer(
                     () -> {
-                        URI location = URI.create("/login?error");
+                        URI location = URI.create("/login?error&method=local");
                         if (exception instanceof BadCredentialsException) {
-                            location = URI.create("/login?error=invalid-credential");
+                            location = URI.create("/login?error=invalid-credential&method=local");
                         }
                         if (exception instanceof TooManyRequestsException) {
-                            location = URI.create("/login?error=rate-limit-exceeded");
+                            location = URI.create("/login?error=rate-limit-exceeded&method=local");
                         }
                         return redirectStrategy.sendRedirect(exchange, location);
                     }).then(Mono.empty())