fix: add missing each-block keys (svelte/require-each-key)

Fixed all 27 remaining instances across 19 files. Keys used:
- Object ID fields where available (e.g. account_id_random, event_file_id)
- index for logger lists with no reliable unique key
- Property name for Object.entries() loops

src/lib/elements/element_input_file.svelte

@@ -415,7 +415,7 @@
                     <th>Hash</th>
                 </tr>
             </thead>
-            {#each input_file_list_processed as file_list_item, file_index}
+            {#each input_file_list_processed as file_list_item, file_index (file_index)}
                 <tbody>
                     <tr>
                         <td class="file_remove">

src/lib/elements/element_input_files_tbl.svelte

@@ -355,7 +355,7 @@
                     <th>Hash</th>
                 </tr>
             </thead>
-            {#each processed_file_list as file_list_item, file_index}
+            {#each processed_file_list as file_list_item, file_index (file_index)}
                 <tbody>
                     <tr>
                         <td class="file_remove">

src/lib/elements/element_manage_hosted_file_li.svelte

@@ -127,7 +127,7 @@
             <ol class="list-decimal list-inside">
                 {#each [...$lq__hosted_file_obj_li]
                     .reverse()
-                    .slice(0, max_file_count) as hosted_file_obj}
+                    .slice(0, max_file_count) as hosted_file_obj (hosted_file_obj.hosted_file_id)}
                     <li>
                         <button
                             type="button"

src/lib/elements/element_obj_tbl_row.svelte

@@ -34,7 +34,7 @@
 
 <tr>
     {#if obj != null && typeof obj == 'object'}
-        {#each Object.entries(obj) as [obj_prop_name, obj_prop_value]}
+        {#each Object.entries(obj) as [obj_prop_name, obj_prop_value] (obj_prop_name)}
             <!-- NEED TO ADD A CHECK IF:
             NOTE and WARNING: