make subjectline input use size=1 for compatibility with CJK fonts

src/components/poll/poll_form.vue

@@ -12,6 +12,7 @@
         <input
           :id="`poll-${index}`"
           v-model="options[index]"
+          size="1"
           class="poll-option-input"
           type="text"
           :placeholder="$t('polls.option')"

src/components/post_status_form/post_status_form.vue

@@ -123,6 +123,7 @@
             type="text"
             :placeholder="$t('post_status.content_warning')"
             :disabled="posting"
+            size="1"
             class="form-post-subject"
           >
         </EmojiInput>