New features (#477)

* Linking/Unlinking, Dir changing, CDN

* Fixes #435

* Progress bar

* Create splashscreen.html

* Run lint

* add rust part

* remove splashscreen code

---------

Co-authored-by: Jai A <jaiagr+gpg@pm.me>

theseus_gui/src/components/ui/tutorial/LoginCard.vue

@@ -57,7 +57,7 @@ const openUrl = async () => {
 <template>
   <div class="login-card">
     <img
-      src="https://cdn.discordapp.com/attachments/1115781524047020123/1119319322028949544/Modrinth_icon.png"
+      src="https://launcher-files.modrinth.com/assets/default_profile.png"
       class="logo"
       alt="Minecraft art"
     />