Updates dependencies

Adds showWhatsNewAfterUpgrades setting
Removes messages.suppressUpdateNotice
Removes messages.suppressWelcomeNotice

Updates all the screenshots
Updates welcome & settings

Adds debug outputLevel

Adds settings for GitLens Results view
Adds layout settings for explorers
Adds not equals support
Updates README (wip)

Fixes settings migration

Rewords many settings

Moves settings images into a settings folder
Adds hover setting images
Updates dependencies

Expands support for dealing with additional settings
Optimizes visibility and enablement

Adds jump to menu to settings
Adds more content to the Welcome page
And more

Uses import() for copy/paste and tmp

Since git log --follow drops merges, -m --first-parent adds them back

Updates dependencies