[MM-14058] Add support for i18n (#2190)

* Add language files

* Add react-intl, mmjstool, setup for adding translations

* Translated main module

* Translations for renderer

* A few minor fixes

* More fixes

* Add CI, add missing menu translations, other cleanup

* Added setting to manually select the language of the app

* Force English for E2e

* Unit tests

* Fix mmjstool

* Move set language to before update menu

* PR feedback

src/common/communication.ts

@@ -122,3 +122,7 @@ export const RELOAD_CURRENT_VIEW = 'reload-current-view';
 
 export const PING_DOMAIN = 'ping-domain';
 export const PING_DOMAIN_RESPONSE = 'ping-domain-response';
+
+export const GET_LANGUAGE_INFORMATION = 'get-language-information';
+export const RETRIEVED_LANGUAGE_INFORMATION = 'retrieved-language-information';
+export const GET_AVAILABLE_LANGUAGES = 'get-available-languages';

src/common/config/index.ts

@@ -328,6 +328,10 @@ export class Config extends EventEmitter {
         return this.combinedData?.autoCheckForUpdates;
     }
 
+    get appLanguage() {
+        return this.combinedData?.appLanguage;
+    }
+
     // initialization/processing methods
 
     /**

src/common/permissions.ts

@@ -6,5 +6,5 @@ export const BASIC_AUTH_PERMISSION = 'canBasicAuth';
 
 // Permission descriptions
 export const PERMISSION_DESCRIPTION = {
-    [BASIC_AUTH_PERMISSION]: 'Web Authentication',
+    [BASIC_AUTH_PERMISSION]: 'common.permissions.canBasicAuth',
 };

src/common/tabs/TabView.ts

@@ -59,10 +59,6 @@ export function getServerView(srv: MattermostServer, tab: Tab) {
     }
 }
 
-export function getTabViewName(serverName: string, tabType: string) {
-    return `${serverName}___${tabType}`;
-}
-
 export function getTabDisplayName(tabType: TabType) {
     switch (tabType) {
     case TAB_MESSAGING:
@@ -76,6 +72,10 @@ export function getTabDisplayName(tabType: TabType) {
     }
 }
 
+export function getTabViewName(serverName: string, tabType: string) {
+    return `${serverName}___${tabType}`;
+}
+
 export function canCloseTab(tabType: TabType) {
     return tabType !== TAB_MESSAGING;
 }

src/common/utils/util.ts

@@ -60,6 +60,10 @@ function isVersionGreaterThanOrEqualTo(currentVersion: string, compareVersion: s
     return true;
 }
 
+export function t(s: string) {
+    return s;
+}
+
 export default {
     getDisplayBoundaries,
     runMode,