style(journals): apply expanded 80-width formatting and snake_case

- Batch formatted all Journals module files using Prettier with printWidth: 80.
- Refactored preventDefault to prevent_default across all Svelte components.
- Standardized line breaks for imports and long attribute lists for better readability.
- Ensured consistent snake_case naming for internal identifiers.

src/routes/journals/ae_comp__journal_entry_ai_tools.svelte

@@ -13,18 +13,18 @@
         log_lvl?: number;
     }
 
-    let { 
-        content, 
-        summary = $bindable(), 
-        on_save, 
-        log_lvl = 0 
+    let {
+        content,
+        summary = $bindable(),
+        on_save,
+        log_lvl = 0
     }: Props = $props();
 </script>
 
 <div class="journal-entry-ai-tools absolute top-2 right-2 z-10">
     <AE_AITools
         {content}
-        bind:summary={summary}
+        bind:summary
         onSave={(newSummary) => {
             summary = newSummary;
             on_save();