Fix regressions in web build (#15920)

* Update build for web issues

* Fix remote\web package.json

* Remove extension activate test

* Add terminal entry point

* Bump distro

* Update docker files and pipelines

* Add linux task

* Update build pool

* Correct image name

* Update pipelines

* Fix indention

* Update sql-web-build.yml for Azure Pipelines

Add new build variable

* Update sql-web-build.yml for Azure Pipelines

Revert previous commit

* Disable sourcemaps upload

* Remove compile step

* Fix yaml typo

* Fix dependson error

* Update yaml

* Add notebook parameters

* Remove web from desktop builds

* Add web createDrop script

* Bump distro

* Change execution mode on createDrop script

* Code review feedback

* Update CI hygiene cache key

* Bump distro

* Fix merge conflicts

* Revert "Fix merge conflicts"

This reverts commit 06f7a58b6e0a065520b7686e8469e4e7682e157a.

* Bump distro to before smoke test update

build/azure-pipelines/web/build/Dockerfile

@@ -0,0 +1,24 @@
+#Download base image ubuntu 21.04
+FROM ubuntu:21.04
+ENV TZ=America/Los_Angeles
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+# Update Software repository
+RUN apt-get update && apt-get upgrade -y
+
+RUN apt-get install -y libxkbfile-dev pkg-config libsecret-1-dev libxss1 dbus xvfb libgtk-3-0 \
+	libkrb5-dev git apt-transport-https ca-certificates curl gnupg-agent software-properties-common \
+	libnss3 libasound2 make gcc libx11-dev fakeroot rpm libgconf-2-4 libunwind8 g++ python
+
+#docker
+RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
+RUN apt-key fingerprint 0EBFCD88
+RUN add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
+RUN apt-get update
+RUN apt-get -y install docker-ce docker-ce-cli containerd.io
+
+# This image needs to be built on a linux host; some weird stuff happens and the xvfb service won't start
+# if built on a windows host.
+ADD ./xvfb.init /etc/init.d/xvfb
+RUN chmod +x /etc/init.d/xvfb
+RUN update-rc.d xvfb defaults

build/azure-pipelines/web/build/xvfb.init

@@ -0,0 +1,53 @@
+#!/bin/bash
+#
+# /etc/rc.d/init.d/xvfbd
+#
+# chkconfig: 345 95 28
+# description: Starts/Stops X Virtual Framebuffer server
+# processname: Xvfb
+#
+### BEGIN INIT INFO
+# Provides:          xvfb
+# Required-Start:    $remote_fs $syslog
+# Required-Stop:     $remote_fs $syslog
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Start xvfb at boot time
+# Description:       Enable xvfb provided by daemon.
+### END INIT INFO
+
+[ "${NETWORKING}" = "no" ] && exit 0
+
+PROG="/usr/bin/Xvfb"
+PROG_OPTIONS=":10 -ac -screen 0 1024x768x24"
+PROG_OUTPUT="/tmp/Xvfb.out"
+
+case "$1" in
+	start)
+		echo "Starting : X Virtual Frame Buffer "
+		$PROG $PROG_OPTIONS>>$PROG_OUTPUT 2>&1 &
+		disown -ar
+	;;
+	stop)
+		echo "Shutting down : X Virtual Frame Buffer"
+		killproc $PROG
+		RETVAL=$?
+		[ $RETVAL -eq 0 ] && /bin/rm -f /var/lock/subsys/Xvfb
+		/var/run/Xvfb.pid
+		echo
+	;;
+	restart|reload)
+		$0 stop
+		$0 start
+		RETVAL=$?
+	;;
+	status)
+		status Xvfb
+		RETVAL=$?
+	;;
+	*)
+		echo $"Usage: $0 (start|stop|restart|reload|status)"
+		exit 1
+esac
+
+exit $RETVAL