Moved the period and period chooser to the "accounting.report.period" module.

src/accounting/report/views.py

@@ -20,12 +20,12 @@
 from flask import Blueprint, request, Response
 
 from accounting.models import Currency, Account
+from accounting.report.period import Period
 from accounting.utils.permission import has_permission, can_view
 from .reports import Journal, Ledger, IncomeExpenses, TrialBalance, \
     IncomeStatement, BalanceSheet, Search
 from .template_filters import format_amount
 from .utils.income_expense_account import IncomeExpensesAccount
-from .utils.period import Period
 
 bp: Blueprint = Blueprint("report", __name__)
 """The view blueprint for the reports."""