feat(前端界面): 优化多页文档布局性能

assets/webui/ofdgo.js

@@ -1623,7 +1623,7 @@ function queueNearbyPages(index, openSeq = state.openSeq) {
 }
 
 function pageShell(index) {
-	return el.svgHost.querySelector(`.page-shell[data-page-index="${index}"]`);
+	return el.svgHost.children.item(index);
 }
 
 function scrollToPage(index) {

go.mod

@@ -5,7 +5,7 @@ go 1.26.0
 require (
 	github.com/tdewolff/canvas v0.0.0-20260901160717-dae8cd8e19a7
 	github.com/tdewolff/font v0.0.0-20260822205238-d0d2f004b117
-	github.com/xiaoqidun/jbig2 v0.0.0-20260909162140-a49e3b56df09
+	github.com/xiaoqidun/jbig2 v0.0.0-20260911163254-c41e397f74ad
 	golang.org/x/image v0.46.0
 	golang.org/x/text v0.42.0
 )

go.sum

@@ -71,8 +71,8 @@ github.com/tdewolff/test v1.0.12 h1:7F21DqIajswxuche0geHdrUZRCWE4oko4b7bcmkkrxk=
 github.com/tdewolff/test v1.0.12/go.mod h1:XPuWBzvdUzhCuxWO1ojpXsyzsA5bFoS3tO/Q3kFuTG8=
 github.com/wcharczuk/go-chart/v2 v2.1.2 h1:Y17/oYNuXwZg6TFag06qe8sBajwwsuvPiJJXcUcLL6E=
 github.com/wcharczuk/go-chart/v2 v2.1.2/go.mod h1:Zi4hbaqlWpYajnXB2K22IUYVXRXaLfSGNNR7P4ukyyQ=
-github.com/xiaoqidun/jbig2 v0.0.0-20260909162140-a49e3b56df09 h1:jMCdYoA3C+Awl1EPuop116Rlz4VNQgmhPqx06h4hM10=
-github.com/xiaoqidun/jbig2 v0.0.0-20260909162140-a49e3b56df09/go.mod h1:8QonVWtENmh2kc6l+leqeGl7psb79DWlHDkCpdChjfQ=
+github.com/xiaoqidun/jbig2 v0.0.0-20260911163254-c41e397f74ad h1:HQG4NaAxnmTXetcjA9uH0uGHPSIEwMOlC+yKFCVDIlw=
+github.com/xiaoqidun/jbig2 v0.0.0-20260911163254-c41e397f74ad/go.mod h1:8QonVWtENmh2kc6l+leqeGl7psb79DWlHDkCpdChjfQ=
 github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZqKjWU=
 github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=