fix: app blog issues & consistency (#3880)

* fix: app fetch

* fix: webp default images

* fix: lint issues

* feat: remove default thumbnail from app assets

* fix: webp paths

* fix: use ` instead of "/'

* fix: use AutoLink

* Fix featured article link + changelog page

---------

Co-authored-by: Prospector <prospectordev@gmail.com>

apps/frontend/src/public/news/feed/articles.json

@@ -38,7 +38,7 @@
     {
       "title": "A Sustainable Path Forward for Modrinth",
       "summary": "Our capital return and what’s next.",
-      "thumbnail": "https://modrinth.com/news/default.jpg",
+      "thumbnail": "https://modrinth.com/news/default.webp",
       "date": "2024-04-04T20:00:00.000Z",
       "link": "https://modrinth.com/news/article/capital-return"
     },
@@ -52,14 +52,14 @@
     {
       "title": "Correcting Inflated Download Counts due to Rate Limiting Issue",
       "summary": "A rate limiting issue caused inflated download counts in certain countries.",
-      "thumbnail": "https://modrinth.com/news/default.jpg",
+      "thumbnail": "https://modrinth.com/news/default.webp",
       "date": "2023-11-10T20:00:00.000Z",
       "link": "https://modrinth.com/news/article/download-adjustment"
     },
     {
       "title": "Introducing Modrinth App Beta",
       "summary": "Changing the modded Minecraft landscape with the new Modrinth App, alongside several other major features.",
-      "thumbnail": "https://modrinth.com/news/default.jpg",
+      "thumbnail": "https://modrinth.com/news/default.webp",
       "date": "2023-08-05T20:00:00.000Z",
       "link": "https://modrinth.com/news/article/modrinth-app-beta"
     },
@@ -73,14 +73,14 @@
     {
       "title": "Accelerating Modrinth's Development",
       "summary": "Our fundraiser and the future of Modrinth!",
-      "thumbnail": "https://modrinth.com/news/default.jpg",
+      "thumbnail": "https://modrinth.com/news/default.webp",
       "date": "2023-02-01T20:00:00.000Z",
       "link": "https://modrinth.com/news/article/accelerating-development"
     },
     {
       "title": "Two years of Modrinth: a retrospective",
       "summary": "The history of Modrinth as we know it from December 2020 to December 2022.",
-      "thumbnail": "https://modrinth.com/news/default.jpg",
+      "thumbnail": "https://modrinth.com/news/default.webp",
       "date": "2023-01-07T00:00:00.000Z",
       "link": "https://modrinth.com/news/article/two-years-of-modrinth-history"
     },
@@ -157,7 +157,7 @@
     {
       "title": "What is Modrinth?",
       "summary": "Hello, we are Modrinth – an open source mods hosting platform. Sounds dry, doesn't it? So let me tell you our story – and I promise, it won't be boring!",
-      "thumbnail": "https://modrinth.com/news/default.jpg",
+      "thumbnail": "https://modrinth.com/news/default.webp",
       "date": "2020-11-27T00:00:00.000Z",
       "link": "https://modrinth.com/news/article/whats-modrinth"
     }