[#137] Add index page support

Signed-off-by: Nikita Zinkevich <n.zinkevich@yadro.com>

go.mod

@@ -8,6 +8,7 @@ require (
 	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240718141740-ce8270568d36
 	git.frostfs.info/TrueCloudLab/zapjournald v0.0.0-20240124114243-cb2e66427d02
 	github.com/bluele/gcache v0.0.2
+	github.com/docker/go-units v0.4.0
 	github.com/fasthttp/router v1.4.1
 	github.com/nspcc-dev/neo-go v0.106.2
 	github.com/prometheus/client_golang v1.19.0
@@ -49,7 +50,6 @@ require (
 	github.com/docker/distribution v2.8.1+incompatible // indirect
 	github.com/docker/docker v20.10.14+incompatible // indirect
 	github.com/docker/go-connections v0.4.0 // indirect
-	github.com/docker/go-units v0.4.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-logr/logr v1.2.4 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect

internal/handler/browse.go

@@ -1,6 +1,7 @@
 package handler
 
 import (
+	"cmp"
 	"html/template"
 	"path"
 	"strconv"
@@ -91,11 +92,7 @@ func (h *Handler) browseObjects(c *fasthttp.RequestCtx, bucketName, prefix strin
 		} else if !aIsDir && bIsDir {
 			return 1
 		}
-
-		if a.FileName < b.FileName {
-			return -1
-		}
-		return 1
+		return cmp.Compare(a.FileName, b.FileName)
 	})
 
 	templatePath := h.config.IndexPageTemplatePath()