cache busting: Import version, changelog (#1201)

## Description:

Import version, changelog statically using webpack for cache busting
purposes.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

---------

Co-authored-by: Scott Anderson <662325+scottanderson@users.noreply.github.com>

src/client/NewsModal.ts

@@ -1,6 +1,7 @@
 import { LitElement, css, html } from "lit";
 import { resolveMarkdown } from "lit-markdown";
 import { customElement, property, query } from "lit/decorators.js";
+import changelog from "../../resources/changelog.md";
 import { translateText } from "../client/Utils";
 import "./components/baseComponents/Button";
 import "./components/baseComponents/Modal";
@@ -14,6 +15,8 @@ export class NewsModal extends LitElement {
 
   @property({ type: String }) markdown = "Loading...";
 
+  private initialized: boolean = false;
+
   static styles = css`
     :host {
       display: block;
@@ -63,6 +66,15 @@ export class NewsModal extends LitElement {
           </div>
         </div>
 
+        <div>
+          ${translateText("news.full_changelog")}
+          <a
+            href="https://github.com/openfrontio/OpenFrontIO/releases"
+            target="_blank"
+            >${translateText("news.github_link")}</a
+          >.
+        </div>
+
         <o-button
           title=${translateText("common.close")}
           @click=${this.close}
@@ -73,6 +85,12 @@ export class NewsModal extends LitElement {
   }
 
   public open() {
+    if (!this.initialized) {
+      this.initialized = true;
+      fetch(changelog)
+        .then((response) => (response.ok ? response.text() : "Failed to load"))
+        .then((markdown) => (this.markdown = markdown));
+    }
     this.requestUpdate();
     this.modalEl?.open();
   }