DEV: Import `I18n` in standard plugins (#10098)

plugins/discourse-details/assets/javascripts/initializers/apply-details.js.es6

@@ -1,3 +1,4 @@
+import I18n from "I18n";
 import { withPluginApi } from "discourse/lib/plugin-api";
 
 function initializeDetails(api) {

plugins/discourse-local-dates/assets/javascripts/discourse/components/discourse-local-dates-create-form.js.es6

@@ -1,3 +1,4 @@
+import I18n from "I18n";
 import EmberObject from "@ember/object";
 import { isEmpty } from "@ember/utils";
 import { schedule } from "@ember/runloop";

plugins/discourse-local-dates/assets/javascripts/lib/local-date-builder.js.es6

@@ -1,3 +1,4 @@
+import I18n from "I18n";
 import DateWithZoneHelper from "./date-with-zone-helper";
 
 const TIME_FORMAT = "LLL";

plugins/discourse-unsupported-browser/assets/javascripts/initializers/discourse-unsupported-browser.js.es6

@@ -1,3 +1,4 @@
+import I18n from "I18n";
 import { withPluginApi } from "discourse/lib/plugin-api";
 
 function initializeInternetExplorerDeprecation(api) {

plugins/poll/assets/javascripts/controllers/poll-ui-builder.js.es6

@@ -1,3 +1,4 @@
+import I18n from "I18n";
 import Controller from "@ember/controller";
 import discourseComputed, { observes } from "discourse-common/utils/decorators";
 import EmberObject from "@ember/object";

plugins/poll/assets/javascripts/lib/discourse-markdown/poll.js.es6

@@ -1,4 +1,5 @@
 /*eslint no-bitwise:0 */
+import I18n from "I18n";
 
 const DATA_PREFIX = "data-poll-";
 const DEFAULT_POLL_NAME = "poll";

plugins/poll/assets/javascripts/widgets/discourse-poll.js.es6

@@ -1,3 +1,4 @@
+import I18n from "I18n";
 import { createWidget } from "discourse/widgets/widget";
 import { h } from "virtual-dom";
 import { iconNode } from "discourse-common/lib/icon-library";