* PLT-3073: Implement SAML/Okta Server side (EE) (#3422)
* PLT-3137 Support for SAML configuration
* PLT-3410 SAML Database Store
* PLT-3411 CLI to add Identity Provider Certificate and Service Provider Private Key
* PLT-3409 SAML Interface for EE
* PLT-3139 Handle SAML authentication server side
* Add localization messages
* PLT-3443 SAML Obtain SP metadata
* PLT-3142 Login & Switch to/from SAML
* Remove Certs for Database & Clean SAML Request
* Make required Username, FirstName and LastName
* PLT-3140 Add SAML to System Console (#3476)
* PLT-3140 Add SAML to System Console
* Move web_client functions to client.jsx
* Fix issues found by PM
* update package.json mattermost driver
* Fix text messages for SAML
Improving help text margins
Updating changes for get link and create post files
Fixing icon for select team screen
Fixing styles for select team button
Adding improvements to posts UI
Adding improvement to post layout
Updating changes for post controls
Updating z-index for sidebar--right
Updating help text position
Fixing code for posts
Fixing css for post view
Pushing improvements for posts view
Updating changes for post view
Updating post layout
Fixing system time css
Updating header for system posts
Updating post css
Removing opacity and changing color for system messages
Simplifying root post and system post behaviour
Removing images from compact view
Updating help text for display
Updating embed preview text for advanced option
PLT-3490 - Fixing RHS issue on Edge
* Change client-side max file size limit
It now relies on the value set in config.json.
Re-enable and tweak the max file size setting in system console.
* Update file upload error message
* Reorganized Backstage code to use a view controller and separated it from integrations code
* Renamed InstalledIntegrations component to BackstageList
* Added EmojiList page
* Added AddEmoji page
* Added custom emoji to autocomplete and text formatter
* Moved system emoji to EmojiStore
* Stopped trying to get emoji before logging in
* Rerender posts when emojis change
* Fixed submit handler on backstage pages to properly support enter
* Removed debugging code
* Updated javascript driver
* Fixed unit tests
* Fixed backstage routes
* Added clientside validation to prevent users from creating an emoji with the same name as a system one
* Fixed AddEmoji page to properly redirect when an emoji is created successfully
* Fixed updating emoji list when an emoji is deleted
* Added type prop to BackstageList to properly support using a table for the list
* Added help text to EmojiList
* Fixed backstage on smaller screen sizes
* Disable custom emoji by default
* Improved restrictions on creating emojis
* Fixed non-admin users seeing the option to delete each other's emojis
* Fixing gofmt
* Fixed emoji unit tests
* Fixed trying to get emoji from the server when it's disabled
* Added the ability to search users by their first/last name or nickname when using @mentions
* Changed @mention autocomplete to display a user's nickname
* Adding expand icon for RHS
Fixing errors
Adding back getTeamInviteLink with better functionality for mobile
Adding vertical align to post__link
Updating improvements for expand RHS stuff
* Improving transition on mobile
* Removing irrelevant changes
