Split `local-visibility-post` feature into `@pleroma` and `@akkoma` variants

Co-authored-by: Lim Chee Aun <cheeaun@gmail.com>

src/components/compose.jsx

@@ -1169,7 +1169,7 @@ function Compose({
                 <option value="public">
                   <Trans>Public</Trans>
                 </option>
-                {supports('@pleroma/local-visibility-post') &&
+                {(supports('@pleroma/local-visibility-post') || supports('@akkoma/local-visibility-post')) &&
                   <option value="local">
                     <Trans>Local</Trans>
                   </option>

src/utils/supports.js

@@ -7,7 +7,8 @@ import { getCurrentInstance } from './store-utils';
 // Non-semver(?) UA string detection
 const containPixelfed = /pixelfed/i;
 const notContainPixelfed = /^(?!.*pixelfed).*$/i;
-const containAnyOma = /(?:pler|akk)oma/i
+const containPleroma = /pleroma/i;
+const containAkkoma = /akkoma/i;
 const platformFeatures = {
   '@mastodon/lists': notContainPixelfed,
   '@mastodon/filters': notContainPixelfed,
@@ -21,7 +22,8 @@ const platformFeatures = {
   '@pixelfed/trending': containPixelfed,
   '@pixelfed/home-include-reblogs': containPixelfed,
   '@pixelfed/global-feed': containPixelfed,
-  '@pleroma/local-visibility-post': containAnyOma,
+  '@pleroma/local-visibility-post': containPleroma,
+  '@akkoma/local-visibility-post': containAkkoma,
 };
 const supportsCache = {};