fix: Update web version 1.18.1 (#7966)

Release notes
https://github.com/deephaven/web-client-ui/releases/tag/v1.18.1

Co-authored-by: deephaven-internal <66694643+deephaven-internal@users.noreply.github.com>

Author: github-actions[bot]

web/client-ui/Dockerfile

@@ -2,10 +2,10 @@ FROM deephaven/node:local-build
 WORKDIR /usr/src/app
 
 # Most of the time, these versions are the same, except in cases where a patch only affects one of the packages
-ARG WEB_VERSION=1.18.0
+ARG WEB_VERSION=1.18.1
 ARG GRID_VERSION=1.1.0
 ARG CHART_VERSION=1.1.0
-ARG WIDGET_VERSION=1.18.0
+ARG WIDGET_VERSION=1.18.1
 
 # Pull in the published code-studio package from npmjs and extract is
 RUN set -eux; \