fix(journals): add type='button' to prevent form submission and migrate to V3 Action API for file downloads

src/routes/journals/+page.svelte

@@ -120,8 +120,7 @@
     <!-- Administrative Action Bar (Edit Mode Only) -->
     {#if $ae_loc.edit_mode}
         <nav class="flex flex-row flex-wrap gap-3 items-center justify-center w-full py-4 border-y border-surface-500/10">
-            <button
-                type="button"
+            <button type="button"
                 class="btn variant-filled-secondary shadow-lg hover:scale-105 transition-transform"
                 onclick={() => $journals_sess.show__modal_new__journal_obj = true}
             >
@@ -129,8 +128,7 @@
                 <span>New Journal</span>
             </button>
 
-            <button
-                type="button"
+            <button type="button"
                 class="btn variant-filled-surface border border-surface-500/30 shadow-lg hover:scale-105 transition-transform"
                 onclick={() => show_import_modal = true}
             >
@@ -138,8 +136,7 @@
                 <span>Import</span>
             </button>
 
-            <button
-                type="button"
+            <button type="button"
                 class="btn variant-soft-surface shadow-lg hover:scale-105 transition-transform"
                 onclick={() => $journals_sess.show__modal__journals_config = true}
             >
@@ -163,8 +160,7 @@
                 <SquareLibrary size="4em" class="mx-auto mb-4 opacity-20" />
                 <h3 class="text-2xl font-bold mb-2">No Journals Found</h3>
                 <p class="opacity-60 mb-6">You haven't created any journals yet. Start by creating one to begin your documentation journey.</p>
-                <button
-                    type="button"
+                <button type="button"
                     class="btn variant-filled-primary"
                     onclick={() => $journals_sess.show__modal_new__journal_obj = true}
                 >