Performance improvements (#114)

* Performance improvements

* run fmt

* optimize creation modal

* remove print, fix mod loader editing

* Fix library update

* update extract loading bar

* Update theseus_gui/src-tauri/src/api/metadata.rs

Co-authored-by: triphora <emma@modrinth.com>

* fix cli

---------

Co-authored-by: triphora <emma@modrinth.com>

theseus_gui/src/pages/instance/Index.vue

@@ -5,7 +5,8 @@
         <Avatar
           size="lg"
           :src="
-            instance.metadata.icon && instance.metadata.icon.startsWith('http')
+            !instance.metadata.icon ||
+            (instance.metadata.icon && instance.metadata.icon.startsWith('http'))
               ? instance.metadata.icon
               : convertFileSrc(instance.metadata?.icon)
           "