Restore glitch-soc's support of custom poll limits

app/javascript/flavours/glitch/features/compose/components/poll_form.jsx

@@ -15,6 +15,7 @@ import {
   selectComposeSuggestion,
 } from 'flavours/glitch/actions/compose';
 import AutosuggestInput from 'flavours/glitch/components/autosuggest_input';
+import { pollLimits } from 'flavours/glitch/initial_state';
 
 const messages = defineMessages({
   option_placeholder: { id: 'compose_form.poll.option_placeholder', defaultMessage: 'Option {number}' },
@@ -83,7 +84,7 @@ const Option = ({ multipleChoice, index, title, autoFocus }) => {
 
       <AutosuggestInput
         placeholder={intl.formatMessage(messages.option_placeholder, { number: index + 1 })}
-        maxLength={100}
+        maxLength={pollLimits.max_option_chars}
         value={title}
         lang={lang}
         spellCheck

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

@@ -55,7 +55,7 @@ import {
 import { REDRAFT } from '../actions/statuses';
 import { STORE_HYDRATE } from '../actions/store';
 import { TIMELINE_DELETE } from '../actions/timelines';
-import { me, defaultContentType } from '../initial_state';
+import { me, defaultContentType, pollLimits } from '../initial_state';
 import { recoverHashtags } from '../utils/hashtag';
 import { unescapeHTML } from '../utils/html';
 import { overwrite } from '../utils/js_helpers';
@@ -369,7 +369,7 @@ const updatePoll = (state, index, value) => state.updateIn(['poll', 'options'],
 
   if (tmp.size === 0) {
     return tmp.push('').push('');
-  } else if (tmp.size < 4) {
+  } else if (tmp.size < pollLimits.max_options) {
     return tmp.push('');
   }