added project description to kanban view

frontend/src/routes/project/Kanban.svelte

@@ -7,10 +7,12 @@
     import { t }             from '../../translations.svelte.js';
     import { user }          from '../../user.svelte.js';
 
-    import Card from './KanbanCard.svelte';
-    import LineEditor from '../../Components/LineEditor.svelte';
+    import Card              from './KanbanCard.svelte';
+    import LineEditor        from '../../Components/LineEditor.svelte';
+    import MarkdownEditor    from '../../Components/MarkdownEditor.svelte';
 
     let { id } = $props();
+    let descr = $state(false);
     let filter_input = $state('');
     let router       = useTinyRouter();
     if (router.hasQueryParam('filter')) filter_input = router.getQueryParam('filter');
@@ -189,6 +191,10 @@
 {/if}
 
 {#if project}
+<fieldset class="kanban description {descr?'active':''}" onclick={e => descr = !descr}>
+    <legend>{t('description')} – {t('expand_on_click')}</legend>
+    {@html project.description.rendered}
+</fieldset>
 <div class="kanban" style="display: grid; grid-template-columns: {`repeat(${columns}, auto)`}">
     <span class="filter">
         <input type="text" bind:value={filter_input} autofocus />