fix many more typescript errors

src/views/ImportDerivedAccountView.vue

@@ -87,7 +87,7 @@ export default class ImportAccountView extends Vue {
   async mounted() {
     await accountsDB.open();
     const accounts = await accountsDB.accounts.toArray();
-    const seedDids = {};
+    const seedDids: Record<string, Array<string>> = {};
     accounts.forEach((account) => {
       const prevDids: Array<string> = seedDids[account.mnemonic] || [];
       seedDids[account.mnemonic] = prevDids.concat([account.did]);