[FIX] sale_timesheet: overview on kanban should not show traceback

-when we click on overview in kanban view of projects, it shows
traceback because the data found was already in proper state
and doesn't require any kind of conversion while there is json
conversion.

-after this commit, it will get proper data and will not create any traceback

task-2031788

addons/sale_timesheet/views/hr_timesheet_templates.xml

@@ -354,7 +354,7 @@
             <a t-attf-class="progress-bar o_progress_{{key}}"
                t-attf-style="width: {{amount / total * 100}}%"
                type="action" data-model="account.analytic.line"
-               t-att-data-domain="json.dumps(employee['__domain_' + key])"
+               t-att-data-domain="employee['__domain_' + key]"
             >
                 <span t-att-title="title" style="font-size: 0px; width: 100%; height: 100%;">
                     <t t-esc="label" />