Gekidou about screen (#5591)

* Added about screen

* Remove TS error

* Needs clean up

* Testing login flow

* Converted About screen to functional component

* Improvements

* Sort imports

* Prevents double tapping

* Apply suggestions from code review

Co-authored-by: Elias Nahum <nahumhbl@gmail.com>

* Code clean up

* Adding translation keys

* Added some keys

* Updated AppVersion component

* Missed translation key

Co-authored-by: Avinash Lingaloo <>
Co-authored-by: Elias Nahum <nahumhbl@gmail.com>

assets/base/i18n/en.json

@@ -1,4 +1,15 @@
 {
+  "about.date": "Build Date:",
+  "about.enterpriseEditione1": "Enterprise Edition",
+  "about.enterpriseEditionLearn": "Learn more about Enterprise Edition at ",
+  "about.enterpriseEditionSt": "Modern communication from behind your firewall.",
+  "about.hash": "Build Hash:",
+  "about.hashee": "EE Build Hash:",
+  "about.teamEditionLearn": "Join the Mattermost community at ",
+  "about.teamEditionSt": "All your team communication in one place, instantly searchable and accessible anywhere.",
+  "about.teamEditiont0": "Team Edition",
+  "about.teamEditiont1": "Enterprise Edition",
+  "about.title": "About {appTitle}",
   "channel_header.directchannel.you": "{displayname} (you)",
   "channel_loader.someone": "Someone",
   "channel.channelHasGuests": "This channel has guests",
@@ -48,6 +59,12 @@
   "login.username": "Username",
   "login.userNotFound": "We couldn't find an account matching your login credentials.",
   "mobile.about.appVersion": "App Version: {version} (Build {number})",
+  "mobile.about.copyright": "Copyright 2015-{currentYear} Mattermost, Inc. All rights reserved",
+  "mobile.about.database": "Database: {type}",
+  "mobile.about.licensed": "Licensed to: {company}",
+  "mobile.about.powered_by": "{site} is powered by Mattermost",
+  "mobile.about.serverVersion": "Server Version: {version} (Build {number})",
+  "mobile.about.serverVersionNoBuild": "Server Version: {version}",
   "mobile.components.select_server_view.connect": "Connect",
   "mobile.components.select_server_view.connecting": "Connecting...",
   "mobile.components.select_server_view.enterServerUrl": "Enter Server URL",
@@ -74,6 +91,9 @@
   "mobile.markdown.image.too_large": "Image exceeds max dimensions of {maxWidth} by {maxHeight}:",
   "mobile.markdown.link.copy_url": "Copy URL",
   "mobile.mention.copy_mention": "Copy Mention",
+  "mobile.notice_mobile_link": "mobile apps",
+  "mobile.notice_platform_link": "server",
+  "mobile.notice_text": "Mattermost is made possible by the open source software used in our {platform} and {mobile}.",
   "mobile.oauth.failed_to_login": "Your login attempt failed. Please try again.",
   "mobile.oauth.failed_to_open_link": "The link failed to open. Please try again.",
   "mobile.oauth.failed_to_open_link_no_browser": "The link failed to open. Please verify if a browser is installed in the current space.",
@@ -82,6 +102,7 @@
   "mobile.oauth.switch_to_browser": "Please use your browser to complete the login",
   "mobile.oauth.try_again": "Try again",
   "mobile.post.cancel": "Cancel",
+  "mobile.privacy_link": "Privacy Policy",
   "mobile.push_notification_reply.button": "Send",
   "mobile.push_notification_reply.placeholder": "Write a reply...",
   "mobile.push_notification_reply.title": "Reply",
@@ -107,6 +128,7 @@
   "mobile.server_url.empty": "Please enter a valid server URL",
   "mobile.server_url.invalid_format": "URL must start with http:// or https://",
   "mobile.session_expired": "Session Expired: Please log in to continue receiving notifications. Sessions for {siteName} are configured to expire every {daysCount, number} {daysCount, plural, one {day} other {days}}.",
+  "mobile.tos_link": "Terms of Service",
   "mobile.unsupported_server.message": "Attachments, link previews, reactions and embed data may not be displayed correctly. If this issue persists contact your System Administrator to upgrade your Mattermost server.",
   "mobile.unsupported_server.ok": "OK",
   "mobile.unsupported_server.title": "Unsupported server version",