Add code editor setting dropdowns (#36534)

Adds three `<select>` controls on top right for indent style, indent
size, and line wrap to the code editor (`_edit`), diff patch editor
(`_diffpatch`) and git hook editor (`/settings/hooks/git/pre-receive`).

The git hooks editor is restyled to wrap the content in a box. Also
included is a bugfix for the git hooks editor where monaco was not
initialized correctly.

---------

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/web/repo/setting/git_hooks.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 
 	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/routers/web/repo"
 	"code.gitea.io/gitea/services/context"
 )
 
@@ -41,6 +42,7 @@ func GitHooksEdit(ctx *context.Context) {
 		return
 	}
 	ctx.Data["Hook"] = hook
+	ctx.Data["CodeEditorConfig"] = repo.CodeEditorConfig{} // not really editing a repo file, so no editor config
 	ctx.HTML(http.StatusOK, tplGithookEdit)
 }