settings: Show rendered markdown folder description.

This commit adds code to show markdown formatted description
in "Channel folders" panel instead of raw text.

web/src/channel_folders.ts

@@ -11,7 +11,16 @@ export type ChannelFolder = z.infer<typeof channel_folder_schema>;
 let channel_folder_name_dict: FoldDict<ChannelFolder>;
 let channel_folder_by_id_dict: Map<number, ChannelFolder>;
 
+export function clean_up_description(channel_folder: ChannelFolder): void {
+    if (channel_folder.rendered_description !== undefined) {
+        channel_folder.rendered_description = channel_folder.rendered_description
+            .replace("<p>", "")
+            .replace("</p>", "");
+    }
+}
+
 export function add(channel_folder: ChannelFolder): void {
+    clean_up_description(channel_folder);
     channel_folder_name_dict.set(channel_folder.name, channel_folder);
     channel_folder_by_id_dict.set(channel_folder.id, channel_folder);
 }
@@ -65,6 +74,7 @@ export function update(event: ChannelFolderUpdateEvent): void {
         channel_folder.description = event.data.description;
         assert(event.data.rendered_description !== undefined);
         channel_folder.rendered_description = event.data.rendered_description;
+        clean_up_description(channel_folder);
     }
 
     if (event.data.is_archived !== undefined) {

web/src/settings_folders.ts

@@ -7,6 +7,7 @@ import * as channel from "./channel.ts";
 import * as channel_folders from "./channel_folders.ts";
 import * as channel_folders_ui from "./channel_folders_ui.ts";
 import * as ListWidget from "./list_widget.ts";
+import {postprocess_content} from "./postprocess_content.ts";
 import type {ChannelFolderUpdateEvent} from "./server_event_types.ts";
 import * as settings_ui from "./settings_ui.ts";
 import {current_user} from "./state_data.ts";
@@ -42,7 +43,7 @@ export function do_populate_channel_folders(): void {
         modifier_html(folder) {
             return render_admin_channel_folder_list_item({
                 folder_name: folder.name,
-                folder_description: folder.description,
+                rendered_description: folder.rendered_description,
                 id: folder.id,
                 is_admin: current_user.is_admin,
             });
@@ -118,7 +119,10 @@ export function update_folder_row(event: ChannelFolderUpdateEvent): void {
     }
 
     if (event.data.description !== undefined) {
-        $folder_row.find(".channel-folder-description").text(event.data.description);
+        const folder = channel_folders.get_channel_folder_by_id(folder_id);
+        $folder_row
+            .find(".channel-folder-description")
+            .html(postprocess_content(folder.rendered_description));
     }
 
     if (event.data.is_archived) {

web/templates/settings/admin_channel_folder_list_item.hbs

@@ -9,7 +9,7 @@
         <span class="channel-folder-name">{{folder_name}}</span>
     </td>
     <td>
-        <span class="channel-folder-description">{{folder_description}}</span>
+        <span class="channel-folder-description rendered-markdown">{{rendered_markdown rendered_description}}</span>
     </td>
     {{#if is_admin}}
     <td class="actions">

web/tests/dispatch.test.cjs

@@ -578,7 +578,10 @@ run_test("channel_folders", ({override}) => {
         assert.equal(folders[0].id, event.channel_folder_id);
         assert.equal(folders[0].name, event.data.name);
         assert.equal(folders[0].description, event.data.description);
-        assert.equal(folders[0].rendered_description, event.data.rendered_description);
+        assert.equal(
+            folders[0].rendered_description,
+            event.data.rendered_description.replace("<p>", "").replace("</p>", ""),
+        );
         assert.equal(folders[0].is_archived, event.data.is_archived);
     }