**Issue 1:**

Steps to reproduce:
- Insert a icon in an empty paragraph.
- Remove the inserted icon.
- The paragraph becomes unreachable.

Cause:
- When a paragraph contains only an icon, removing that icon during the delete process does not trigger `fillEmpty`. As a result, the paragraph ends up with no content, leaving it empty and unreachable.

Solution:
- During the delete process, after the icon is removed, call the `fillEmpty` method. This ensures that if the block becomes empty, a `<br>` is inserted inside the paragraph, keeping it accessible.


**Issue 2:**

Steps to reproduce

- Insert an icon in an empty paragraph.
- Place the cursor before the icon.
- Press Enter.
- Nothing happens.

Cause
- When the cursor is placed before a `contenteditable=false` element, `getDeepRange` sets the selection deep inside the non-editable element as a result, when Enter is pressed, the action is ignored because the selection is not in an editable context.

Solution

- Instead of setting the selection inside `getDeepRange`, set the selection after calling `getDeepRange` only if the returned range is not within a `contenteditable=false` element.

task-3540454

Forward-Port-Of: odoo/odoo#241052
Forward-Port-Of: odoo/odoo#237891

overlook of https://github.com/odoo/odoo/pull/239717
### Before this commit:
Runbot was red on weekends, as there are no work intervals on weekends.

### After this commit:
Use Friday as a fallback on weekends. In addition, improve the test performance by mocking the total number of weeks of planning to 2 instead of 50 (before: 6s, after: 1s).

runbot-237575

---

Note: ran the test for the next 5 years, and it works :+1: 
```diff
diff --git a/addons/mrp/tests/test_bom.py b/addons/mrp/tests/test_bom.py
index 7acf19e89add..bfadc8e487c1 100644
--- a/addons/mrp/tests/test_bom.py
+++ b/addons/mrp/tests/test_bom.py
@@ -13,6 +13,7 @@ from odoo.tests.common import HttpCase, tagged, freeze_time
 from odoo.tools import float_compare, float_round, float_repr
 
 
+@tagged("-at_install", "post_install")
 @freeze_time(fields.Date.today())
 class TestBoM(TestMrpCommon):
 
@@ -963,6 +964,16 @@ class TestBoM(TestMrpCommon):
             self.assertEqual(report_values['lines']['operations_time'], 15.0)
             self.assertEqual(report_values['lines']['producible_qty'], 2)
 
+    def test_bom_report_planning_with_producible_qty_loop(self):
+        from datetime import date  # noqa: PLC0415
+        start, stop = date.today(), date.fromisoformat("2031-01-01")
+        with freeze_time(start) as frozen_date:
+            for i in range((stop - start).days):
+                print("date:", str(date.today()))
+                with self.subTest(str(date.today())):
+                    self.test_bom_report_planning_with_producible_qty()
+                    frozen_date.tick(timedelta(days=1))
+
     def test_21_bom_report_variant(self):
         """ Test a sub BoM process with multiple variants.
         BOM 1:
```