Don't add dictionary to collapsible dictionary settings if it contains no term entries and no kanji entries

<rikaitan.link>ZDM3MDVkMzI0YTY0YTBlZTE4ZDE2ZTc5NWExNTI0MDNhZDI1NGZiMQo=</rikaitan.link>

Author: jason-ojisan

ext/js/pages/settings/collapsible-dictionary-controller.js

@@ -83,6 +83,9 @@ export class CollapsibleDictionaryController {
         for (let i = 0, ii = dictionaries.length; i < ii; ++i) {
             const {name} = dictionaries[i];
             const dictionaryInfo = this._dictionaryInfoMap.get(name);
+            if (!dictionaryInfo?.counts?.terms?.total && !dictionaryInfo?.counts?.kanji?.total) {
+                continue;
+            }
             if (typeof dictionaryInfo === 'undefined') { continue; }
 
             const select = this._addSelect(fragment, name, `rev.${dictionaryInfo.revision}`);