Refactor environment service to emit a single observable. This required significant changes to how the environment service behaves and tackles much of the tech debt planned for it.
* refactor ConfigService to use observables
* make environmentService.urls a ReplaySubject
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Co-authored-by: Hinton <hinton@users.noreply.github.com>
* remove flags from web component
* remove selectedRegionImageName from web component
* remove input
* delete image files and update browser translation
* update translation and popup width for destkop/browser
* remove translations
* revert width on dialog
* update destop images
* update images on browser
* update images on web vault
* revert to previous height
* merge master
* upload new images with same aspect-ratio
* update desktop domains
* update web domains
* remove old translations from desktop
* update translations on browser
* change 'Region' to 'Server' on web
* change labels
* remove 'region' translation
* adjust alignmend so 'Self-hosted' label lines up with others
* adjust width and layout of trial-initiation header to accomodate longer text
