refactor(currencies): make currency code non-unique and increase it's size

app/apps/currencies/migrations/0010_alter_currency_code.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.1.5 on 2025-02-03 03:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('currencies', '0009_alter_exchangerateservice_target_accounts_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='currency',
+            name='code',
+            field=models.CharField(max_length=255, verbose_name='Currency Code'),
+        ),
+    ]