[Glitch] Add dropdown for boost privacy in boost confirmation modal

Port 07b46cb332 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/reducers/boosts.js

@@ -0,0 +1,25 @@
+import Immutable from 'immutable';
+
+import {
+  BOOSTS_INIT_MODAL,
+  BOOSTS_CHANGE_PRIVACY,
+} from 'flavours/glitch/actions/boosts';
+
+const initialState = Immutable.Map({
+  new: Immutable.Map({
+    privacy: 'public',
+  }),
+});
+
+export default function mutes(state = initialState, action) {
+  switch (action.type) {
+  case BOOSTS_INIT_MODAL:
+    return state.withMutations((state) => {
+      state.setIn(['new', 'privacy'], action.privacy);
+    });
+  case BOOSTS_CHANGE_PRIVACY:
+    return state.setIn(['new', 'privacy'], action.privacy);
+  default:
+    return state;
+  }
+}

app/javascript/flavours/glitch/reducers/index.js

@@ -18,6 +18,7 @@ import status_lists from './status_lists';
 import mutes from './mutes';
 import blocks from './blocks';
 import reports from './reports';
+import boosts from './boosts';
 import contexts from './contexts';
 import compose from './compose';
 import search from './search';
@@ -61,6 +62,7 @@ const reducers = {
   mutes,
   blocks,
   reports,
+  boosts,
   contexts,
   compose,
   search,