Add BBCode compositing option

Changelog-mastofe.txt

@@ -5,4 +5,5 @@ Note: This file is to be cleared after each rebase on upstream
 Additions
 ---------
 - `build.sh`: Add error reporting+failing
-- UI: Limit the inlined-images to a maximum size (400px tall & width of the post)
+- UI: Limit the inlined-images to a maximum size (400px tall & width of the post)
+- Compositing: Add BBCode content-type option

app/javascript/flavours/glitch/features/compose/components/options.js

@@ -61,6 +61,10 @@ const messages = defineMessages({
     defaultMessage: 'Markdown',
     id: 'compose.content-type.markdown',
   },
+  bbcode: {
+    defaultMessage: 'BBCode',
+    id: 'compose.content-type.bbcode',
+  },
   plain: {
     defaultMessage: 'Plain text',
     id: 'compose.content-type.plain',
@@ -252,6 +256,11 @@ class ComposerOptions extends ImmutablePureComponent {
         name: 'text/markdown',
         text: <FormattedMessage {...messages.markdown} />,
       },
+      bbcode: {
+        icon: 'bold',
+        name: 'text/bbcode',
+        text: <FormattedMessage {...messages.bbcode} />,
+      },
     };
 
     //  The result.
@@ -358,6 +367,7 @@ class ComposerOptions extends ImmutablePureComponent {
             contentTypeItems.plain,
             contentTypeItems.html,
             contentTypeItems.markdown,
+            contentTypeItems.bbcode,
           ]}
           onChange={onChangeContentType}
           onModalClose={onModalClose}