fix(admin): respect urlPrefix in S3 bucket and S3Tables navigation links (#8885)

* fix(admin): respect urlPrefix in S3 bucket and S3Tables navigation links (#8884)

Several admin UI templates used hardcoded URLs (templ.SafeURL) instead of
dash.PUrl(ctx, ...) for navigation links, causing 404 errors when the
admin is deployed with --urlPrefix.

Fixed in: s3_buckets.templ, s3tables_buckets.templ, s3tables_tables.templ

* fix(admin): URL-escape bucketName in S3Tables navigation links

Add url.PathEscape(bucketName) for consistency and correctness in
s3tables_tables.templ (back-to-namespaces link) and s3tables_buckets.templ
(namespace link), matching the escaping already used in the table details link.

weed/admin/view/app/s3tables_buckets.templ

@@ -2,6 +2,7 @@ package app
 
 import (
 	"fmt"
+	"net/url"
 
 	"github.com/seaweedfs/seaweedfs/weed/admin/dash"
 	"github.com/seaweedfs/seaweedfs/weed/s3api/s3tables"
@@ -152,7 +153,7 @@ templ S3TablesBuckets(data dash.S3TablesBucketsData) {
 												<div class="btn-group btn-group-sm" role="group">
 													{{ bucketName, parseErr := s3tables.ParseBucketNameFromARN(bucket.ARN) }}
 													if parseErr == nil {
-														<a class="btn btn-outline-primary btn-sm" href={ templ.SafeURL(fmt.Sprintf("/object-store/s3tables/buckets/%s/namespaces", bucketName)) }>
+														<a class="btn btn-outline-primary btn-sm" href={ dash.PUrl(ctx, fmt.Sprintf("/object-store/s3tables/buckets/%s/namespaces", url.PathEscape(bucketName))) }>
 															<i class="fas fa-folder-open"></i>
 														</a>
 													} else {