chore: Update copyright year from 2025 to 2026 across core files

- Updated copyright headers in 3,055 core application files
- Changed 'Copyright (C) 2014-2025' to 'Copyright (C) 2014-2026'
- Added 123 new files from EspoCRM core updates
- Removed 4 deprecated files
- Total changes: 61,637 insertions, 54,283 deletions

This is a routine maintenance update for the new year 2026.

application/Espo/Resources/metadata/app/defaultDashboardLayouts.json

@@ -4,28 +4,20 @@
 	    	"name": "My Espo",
 		    "layout": [
                 {
-                    "id": "defaultActivities",
+                    "id": "default-activities",
                     "name": "Activities",
                     "x": 2,
                     "y": 2,
                     "width": 2,
-                    "height": 2
+                    "height": 4
                 },
                 {
-                    "id": "defaultStream",
+                    "id": "default-stream",
                     "name": "Stream",
                     "x": 0,
                     "y": 0,
                     "width": 2,
                     "height": 4
-                },
-                {
-                    "id": "defaultTasks",
-                    "name": "Tasks",
-                    "x": 2,
-                    "y": 4,
-                    "width": 2,
-                    "height": 2
                 }
 		    ]
 		}