switch the encryption secret from localStorage to IndexedDB (because localStorage gets lost so often)

src/db/tables/accounts.ts

@@ -5,7 +5,7 @@ export type Account = {
   /**
    * Auto-generated ID by Dexie
    */
-  id?: number;
+  id?: number; // this is only blank on input, when the database assigns it
 
   /**
    * The date the account was created
@@ -48,7 +48,7 @@ export type Account = {
 /**
  * Schema for the accounts table in the database.
  * Fields starting with a $ character are encrypted.
- * @see {@link https://github.com/PVermeer/dexie-addon-suite-monorepo/tree/master/packages/dexie-encrypted-addon}
+ * @see {@link https://github.com/PVermeer/dexie-addon-suite-monorepo/tree/master/packages/dexie-encrypted-addon#added-schema-syntax}
  */
 export const AccountsSchema = {
   accounts: