Add caretAvatar patch

src/patches/hideCaretAvatar.patch

@@ -0,0 +1,13 @@
+diff --git a/js/3rdparty/webodf/editor/Editor.js b/js/3rdparty/webodf/editor/Editor.js
+index 644f4b5..50881a2 100644
+--- a/js/3rdparty/webodf/editor/Editor.js
++++ b/js/3rdparty/webodf/editor/Editor.js
+@@ -383,7 +383,7 @@ define("webodf/editor/Editor", [
+                 odfCanvas.addListener("statereadychange", function () {
+                     var viewOptions = {
+                             editInfoMarkersInitiallyVisible: collabEditing,
+-                            caretAvatarsInitiallyVisible: collabEditing,
++                            caretAvatarsInitiallyVisible: false,
+                             caretBlinksOnRangeSelect: true
+                         };
+ 

src/updateWebODF.sh

@@ -34,3 +34,4 @@ cp "$WEBODF_BUILDDIR"/programs/editor/editor.css ./css/3rdparty/webodf
 
 # patches against upstream
 patch -p1 -i src/patches/fontsCssPath.patch
+patch -p1 -i src/patches/hideCaretAvatar.patch