Hooks for sentry integration (#1460)

* add sentry webpack plugin

* allow override of webpack config

* work around cheerio inability to parse jinga templates

* webpack can not minify jinja templates

* allow script injection to specify other attributes

* allow script injection to specify other attributes

* Adjustments to make plugin systems work

* Add sourcemaps for javascript in prod webpack

* Update .gitignore

* Fix spelling errors

Co-authored-by: Matt Weiden <538456+mweiden@users.noreply.github.com>

.gitignore

@@ -24,9 +24,14 @@ server/common/web/static/img/
 server/common/web/static/media/
 server/common/web/static/fonts/
 server/common/web/static/js/
-server/common/web/templates/index\.html
+server/common/web/templates/
 server/common/web/csp-hashes.json
 
+# eb build
+artifact.dir
+artifact.zip
+customize
+
 # Jupyter Notebook
 .ipynb_checkpoints
 *.ipynb