refactor: standardize 'prevent_default' helpers and batch format modules

- Renamed internal 'preventDefault' helpers to 'prevent_default' for project-wide snake_case consistency.
- Corrected native event method calls from 'prevent_default()' to 'preventDefault()' to resolve runtime TypeErrors.
- Applied batch formatting (printWidth: 80) to Journals and IDAA Recovery Meetings modules.
- Removed deprecated 'preventDefault' imports from svelte/legacy.
- Fixed Journal Entry 404 by migrating loader to V3 API helper.

src/lib/elements/element_input_file.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-    import { run, preventDefault } from 'svelte/legacy';
+    import { run } from 'svelte/legacy';
 
     import { createEventDispatcher, onMount, tick } from 'svelte';
 
@@ -50,6 +50,13 @@
         console.log('** Element Mounted: ** Element Input File');
     });
 
+    function prevent_default<T extends Event>(fn: (event: T) => void) {
+        return function (event: T) {
+            event.prevent_default();
+            fn(event);
+        };
+    }
+
     async function process_file_list(file_list: FileList | null) {
         console.log('*** process_file_list() ***');
 
@@ -388,7 +395,7 @@
                     <tr>
                         <td class="file_remove">
                             <button
-                                onclick={preventDefault(() => {
+                                onclick={prevent_default(() => {
                                     remove_file_from_filelist(file_index);
                                 })}
                                 class="btn btn-md preset-tonal-warning hover:preset-filled-secondary-500 m-1"