Fix multiple choice icon to make obvious it’s radio buttons

Signed-off-by: Jan-Christoph Borchardt <hey@jancborchardt.net>

css/icons.scss

@@ -5,7 +5,7 @@
 @include icon-black-white('answer-short', 'forms', 1);
 @include icon-black-white('answer-long', 'forms', 1);
 @include icon-black-white('answer-checkbox', 'forms', 1);
-@include icon-black-white('answer-multiple', 'forms', 1);
+@include icon-black-white('answer-multiple', 'forms', 2);
 @include icon-black-white('drag-handle', 'forms', 1);
 
 .icon-yes {

img/answer-multiple.svg

@@ -1,3 +1,4 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16">
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-  <path d="M2 3v2h2V3zM6 3v2h8V3zM2 7v2h2V7zM6 7v2h8V7zM2 11v2h2v-2zM6 11v2h8v-2z"/>
+<svg xmlns="http://www.w3.org/2000/svg" height="16px" width="16px" version="1.1">
+ <path d="m8 1a7 7 0 0 0 -7 7 7 7 0 0 0 7 7 7 7 0 0 0 7 -7 7 7 0 0 0 -7 -7zm0 1a6 6 0 0 1 6 6 6 6 0 0 1 -6 6 6 6 0 0 1 -6 -6 6 6 0 0 1 6 -6zm0 2c-2.2091 0-4 1.7909-4 4 0 2.209 1.7909 4 4 4 2.209 0 4-1.791 4-4 0-2.2091-1.791-4-4-4z"/>
 </svg>