[MM-62553]+[MM-62554] Property Architecture: cursor based pagination (#30119)

* refactor: Replace pagination with cursor-based pagination for custom profile attributes

* remove pagination loop on property value retrieval for CPA

* add migrations to optimize pagination on property fields and values

* adapt test to remove pagination check

* update migrations list

* postgres: drop index concurrently

* concurrent index manipulation must be done outside of a Tx

* fix: Correct SQL index drop syntax from "OM" to "ON" in migration files

* test: Add CountForGroup test cases for property field store

* refactor: Add CountForGroup method to PropertyFieldStore interface and implementations

* Fix style and i18n

* feat: Add optional deleted property field filtering to CountForGroup method

* refactor: Update CountForGroup to support optional deleted property fields

* test: Add comprehensive tests for CountForGroup with includeDeleted parameter

* adapt test + gen layers

* rename property service method and set the includeDelete to false

* refactor: Remove redundant constant and use CustomProfileAttributesFieldLimit directly

* fix tests

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/store/storetest/mocks/PropertyFieldStore.go

@@ -14,6 +14,34 @@ type PropertyFieldStore struct {
 	mock.Mock
 }
 
+// CountForGroup provides a mock function with given fields: groupID, includeDeleted
+func (_m *PropertyFieldStore) CountForGroup(groupID string, includeDeleted bool) (int64, error) {
+	ret := _m.Called(groupID, includeDeleted)
+
+	if len(ret) == 0 {
+		panic("no return value specified for CountForGroup")
+	}
+
+	var r0 int64
+	var r1 error
+	if rf, ok := ret.Get(0).(func(string, bool) (int64, error)); ok {
+		return rf(groupID, includeDeleted)
+	}
+	if rf, ok := ret.Get(0).(func(string, bool) int64); ok {
+		r0 = rf(groupID, includeDeleted)
+	} else {
+		r0 = ret.Get(0).(int64)
+	}
+
+	if rf, ok := ret.Get(1).(func(string, bool) error); ok {
+		r1 = rf(groupID, includeDeleted)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
 // Create provides a mock function with given fields: field
 func (_m *PropertyFieldStore) Create(field *model.PropertyField) (*model.PropertyField, error) {
 	ret := _m.Called(field)