Merged PR 3625: Excludes new dash users without id deal

# Description

This PR has 2 commits:
- The first one handles the removal from the computation any user that has not an id deal properly set. I just created a boolean field in int_core__user_host that identifies if the host has no id_deal. Then apply the new condition in the 2 main usages of New Dash info.
- The second one cleans New Dash KPIs. Since we do not have anymore users without deals, it means that the identification of the host/account is going to be exactly the same if done by id_user_host or id_deal. I hated having id_user_host in KPIs so I've removed it :)

Lastly, this should speed up massively the execution. Not because there's improvements on the code but rather the reduction of data.

# 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: #20809

models/intermediate/core/int_core__user_host.sql

@@ -49,6 +49,7 @@ select
     uu.joined_date_utc,
     uu.created_date_utc,
     uu.updated_date_utc,
+    case when uu.id_deal is null then true else false end as is_missing_id_deal,
     case
         when ndu.id_user_host is not null then true else false
     end as is_user_in_new_dash,

models/intermediate/core/int_core__user_product_bundle.sql

@@ -44,7 +44,7 @@ from stg_core__user_product_bundle upb
 /* 
 There are many not migrated users that have product bundles.
 Since users are not migrated, these bundles cannot be active.
-In order to avoid potential upstream problems, it is enforced
+In order to avoid potential downstream problems, it is enforced
     that product bundles need to be from users that have been
     already migrated.
 */
@@ -52,4 +52,5 @@ inner join
     int_core__user_host uh
     on upb.id_user = uh.id_user_host
     and uh.is_user_in_new_dash = true
+    and uh.is_missing_id_deal = false
 left join stg_core__protection_plan pp on upb.id_protection_plan = pp.id_protection_plan

models/intermediate/core/schema.yml

@@ -1850,6 +1850,11 @@ models:
         description: |
           Date of the last time the information of the Host was updated
           in our systems.
+      - name: is_missing_id_deal
+        data_type: boolean
+        description: |
+          Flag to identify if a user is missing the id_deal (true) or 
+          not (false).
       - name: is_user_in_new_dash
         data_type: boolean
         description: |