Merged PR 3967: Adds an "All History" time window to Account Margin

# Description

Quick improvement to be able to report the same setup of metrics by considering all account history up to a certain date.

It adds a new computation flow for this All History window. Note that I needed to update the macro to override this case by using unbounded preceding.

I also took the opportunity to update the exposures of the new report.

# Checklist

- [X] The edited models and dependants run properly with production data.
- [X] The edited models are sufficiently documented.
- [X] The edited models contain PK tests, and I've ran and passed them.
- [X] I have checked for DRY opportunities with other models and docs.
- [X] I've picked the right materialization for the affected models.

# Other

- [ ] Check if a full-refresh is required after this PR is merged.

Related work items: #26085

models/reporting/exposures.yml

@@ -268,6 +268,26 @@ exposures:
       name: Oriol Roqué
       email: oriol.roque@superhog.com
 
+  - name: account_managers_margin
+    label: Account Margin
+    type: dashboard
+    maturity: high
+    url: https://app.powerbi.com/groups/me/apps/bb1a782f-cccc-4427-ab1a-efc207d49b62/reports/a35ab979-71a2-4dad-a0d9-b0ad513f9957/ReportSectionddc493aece54c925670a?experience=power-bi
+    description: |
+      A PBI report that shows the revenue, retained revenue after 
+      host takehome payments and after host resolutions payments per 
+      account, within different time windows.
+      It can help Account Managers to focus on those accounts that are 
+      at different margin levels. It can also benefit Resolution Agents
+      to better balance generosity on resolutions payments.
+
+    depends_on:
+      - ref('monthly_aggregated_metrics_history_by_deal_by_time_window')
+
+    owner:
+      name: Oriol Roqué
+      email: oriol.roque@superhog.com
+
   - name: guest_kpis
     label: Guest KPIs
     type: dashboard

models/reporting/general/schema.yml

@@ -1406,6 +1406,7 @@ models:
           - not_null
           - accepted_values:
               values:
+                - All History
                 - Previous 12 months
                 - Previous 6 months
                 - Previous 3 months