Refactor Journals UI and enhance CodeMirror editor

- Added formatting toolbar to journal entry editor with support for bold, italic, headers, and lists.
- Standardized iconography to Lucide across Journals module, removing legacy FontAwesome.
- Improved responsiveness and dark mode compatibility in layout and list views.
- Refactored CodeMirror component to support external control via editorView binding.
- Hardened security by removing unnecessary @html tags in journal names.

src/routes/journals/ae_comp__journal_obj_li.svelte

@@ -60,7 +60,7 @@
                 >
                     <h3 class="journal__name h3">
                         <BookType class="m-1 inline-block" />
-                        <span class="journal__name">{@html journals_journal_obj.name}</span>
+                        <span class="journal__name">{journals_journal_obj.name}</span>
                     </h3>
 
                     <!-- Show a label if the type code is set -->