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/docker/Dockerfile

@@ -1,10 +1,14 @@
-#Download base image ubuntu 18.04
-FROM ubuntu:18.04
+#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
+RUN apt-get update && apt-get upgrade -y
 
-RUN apt-get install -y libxkbfile-dev pkg-config libsecret-1-dev libxss1 dbus libgtk-3-0
+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++  python3-dev python3-pip
 
 ADD ./ /opt/ads-server