[MM-36431] Logic to support multiple configurable tabs per server (#1655)

* Updated config, added types and classes for messaging tab

* Working app with tabs and servers

* Remainder of logic

* Make base tab abstract class

* Account for new app case

* Merge'd

* PR feedback

src/types/config.ts

@@ -1,19 +1,48 @@
 // Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
-export type Team = {
+export type Tab = {
     name: string;
-    url: string;
     order: number;
 }
 
-export type TeamWithIndex = Team & {index: number};
+export type Team = Tab & {
+    url: string;
+    lastActiveTab?: number;
+}
 
-export type Config = ConfigV2;
+export type TeamWithIndex = Team & {index: number};
+export type TeamWithTabs = Team & {tabs: Tab[]};
+
+export type Config = ConfigV3;
+
+export type ConfigV3 = {
+    version: 3;
+    teams: TeamWithTabs[];
+    showTrayIcon: boolean;
+    trayIconTheme: string;
+    minimizeToTray: boolean;
+    notifications: {
+        flashWindow: number;
+        bounceIcon: boolean;
+        bounceIconType: 'critical' | 'informational';
+    };
+    showUnreadBadge: boolean;
+    useSpellChecker: boolean;
+    enableHardwareAcceleration: boolean;
+    autostart: boolean;
+    spellCheckerLocale: string;
+    darkMode: boolean;
+    downloadLocation: string;
+}
 
 export type ConfigV2 = {
     version: 2;
-    teams: Team[];
+    teams: Array<{
+        name: string;
+        url: string;
+        order: number;
+    }>;
     showTrayIcon: boolean;
     trayIconTheme: string;
     minimizeToTray: boolean;
@@ -54,7 +83,7 @@ export type ConfigV1 = {
 
 export type ConfigV0 = {version: 0; url: string};
 
-export type AnyConfig = ConfigV2 | ConfigV1 | ConfigV0;
+export type AnyConfig = ConfigV3 | ConfigV2 | ConfigV1 | ConfigV0;
 
 export type BuildConfig = {
     defaultTeams?: Team[];
@@ -70,7 +99,7 @@ export type RegistryConfig = {
     enableAutoUpdater: boolean;
 }
 
-export type CombinedConfig = ConfigV2 & BuildConfig & {
+export type CombinedConfig = ConfigV3 & BuildConfig & {
     registryTeams: Team[];
     appName: string;
 }

src/types/utils.ts

@@ -4,7 +4,6 @@
 export type ServerFromURL = {
     name: string;
     url: URL;
-    index: number;
 }
 
 export type Boundaries = {