:recycle: making sidebar state easier to read

vue-theme/src/components/sidebars/sidebar.vue

 import exhibitionsSidebar from './exhibitions'
 import eventsSidebar from './events'
 
-import { sortTypes } from '@/utils/helpers'
+import { sortTypes, materials } from '@/utils/helpers'
 
 export default {
     props: {
                 'by artist': `${sortTypes.artist}`,       //:2
                 'by episode': `${sortTypes.episode}`,     //:3
             },
-            charaSets: ['0 a b', 'c d e', 'f g h', 'i j k', 'l m n', 'o p q', 'r s t', 'u v w', 'x y z'],
-            materials: ['clay', 'fiber', 'glass', 'metal', 'paper', 'wood'],
-            shouldShowListSort: ['artist', 'exhibition', 'event', 'short', 'guide', 'object', 'publication', 'technique', 'post'],
-            shouldShowMaterialSort: ['artist', 'technique', 'short', 'object', 'guide'],
-            shouldShowAlphaSort: ['artist'],
-            shouldShowDateSort: ['exhibition', 'event'],
-            shouldShowTypeSort: ['short', 'guide', 'publication', 'technique', 'object', 'post']
+            charaSets: [
+                '0 a b', 'c d e', 'f g h',
+                'i j k', 'l m n', 'o p q',
+                'r s t', 'u v w', 'x y z'
+            ],
+            materials: materials,
+            shouldShowListSort: [
+                'artist', 'exhibition', 'event', 
+                'short', 'guide', 'object',
+                'publication', 'technique', 'post'
+            ],
+            shouldShowMaterialSort: [
+                'artist', 
+                'short', 'guide', 'object',
+                'technique',
+            ],
+            shouldShowAlphaSort: [
+                'artist'
+            ],
+            shouldShowDateSort: [
+                'exhibition', 'event'
+            ],
+            shouldShowTypeSort: [
+                'short', 'guide', 'object',
+                'publication', 'technique', 'post'
+            ]
         }
     },
     computed: {

vue-theme/src/utils/helpers.js

     return type.charAt(0).toUpperCase() + type.slice(1)
 }
 
+const materials = [
+    'clay',
+    'fiber',
+    'glass',
+    'metal',
+    'paper',
+    'wood'
+]
+
 const sortTypes = {
     alpha: 'by-alpha',
     recent: 'by-recent',
 
 export {
     convertTitleCase,
+    materials,
     sortTypes,
     postTypes,
     ytThumbnail,