fix(extra-info): show extra info in the RCE thread page

The extra info feature worked with the old thread pages. This CL brings
support to the new RCE thread pages.

Bug: twpowertools:93
Change-Id: I47e4235afa4f7ec441f5a92edfcc28b1cb5f0419
diff --git a/src/contentScripts/communityConsole/extraInfo/injections/threadQuestion.js b/src/contentScripts/communityConsole/extraInfo/injections/threadQuestion.js
new file mode 100644
index 0000000..1efe6db
--- /dev/null
+++ b/src/contentScripts/communityConsole/extraInfo/injections/threadQuestion.js
@@ -0,0 +1,24 @@
+import {MDCTooltip} from '@material/tooltip';
+
+import ThreadModel from '../../../../models/Thread.js';
+import ThreadExtraInfoService from '../services/thread.js';
+
+import BaseExtraInfoInjection from './base.js';
+
+export default class ThreadQuestionExtraInfoInjection extends
+    BaseExtraInfoInjection {
+  inject(threadInfo, injectionDetails) {
+    const [chips, tooltips] =
+        ThreadExtraInfoService.getThreadChips(threadInfo.body?.['1']);
+    this.#injectChips(chips, injectionDetails.stateChips);
+    for (const tooltip of tooltips) new MDCTooltip(tooltip);
+  }
+
+  #injectChips(chips, stateChipsElement) {
+    const stateChipsContainer = stateChipsElement.querySelector(
+        '.scTailwindThreadQuestionStatechipsroot');
+    const container = stateChipsContainer ?? stateChipsElement;
+    const shouldCreateContainer = stateChipsContainer === null;
+    this.addExtraInfoChips(chips, container, shouldCreateContainer);
+  }
+}