fix: format constants for clipboard

Author: BeepBot99

src/App.svelte

@@ -3,6 +3,8 @@
   import ConstantsOutput from './lib/components/ConstantsOutput.svelte'
   import { ConversionError, convert } from './lib/converter/converter.ts'
   import anvilSound from '/anvil.mp3'
+  import prettier from 'prettier'
+  import prettierJava from 'prettier-plugin-java'
 
   let fConstants = $state('// Enter FConstants here.')
   let lConstants = $state('// Enter LConstants here.')
@@ -22,8 +24,15 @@
     sound.play()
   }
 
-  function copyConstants () {
-    navigator.clipboard.writeText(constants)
+  async function copyConstants () {
+    const formatted = await prettier.format(constants, {
+        parser: 'java',
+        plugins: [prettierJava],
+        tabWidth: 2,
+        useTabs: false,
+      },
+    )
+    await navigator.clipboard.writeText(formatted)
     copied = true
     setTimeout(() => copied = false, 2000)
   }
@@ -36,7 +45,8 @@
     <div class="flex flex-col my-auto gap-4">
         <a href="https://github.com/Pedro-Pathing/ConstantsConverter" target="_blank"
            class="btn btn-square size-20 my-auto btn-accent flex-col p-2">
-            <svg fill="currentColor" class="size-18 block" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>GitHub</title>
+            <svg fill="currentColor" class="size-18 block" role="img" viewBox="0 0 24 24"
+                 xmlns="http://www.w3.org/2000/svg"><title>GitHub</title>
                 <path d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"/>
             </svg>
             GitHub