fix(board): restore layouts after column changes (#6979)

* fix: preserve geometry across layout resizing

* style: format layout migration snapshots

packages/db/migrations/sqlite/0048_add_layout_resize_source.sql

@@ -0,0 +1 @@
+ALTER TABLE `layout` ADD `resize_source` text;

packages/db/migrations/sqlite/meta/_journal.json

@@ -337,6 +337,13 @@
       "when": 1788763848930,
       "tag": "0047_add_byte_unit_system",
       "breakpoints": true
+    },
+    {
+      "idx": 48,
+      "version": "6",
+      "when": 1790988595595,
+      "tag": "0048_add_layout_resize_source",
+      "breakpoints": true
     }
   ]
 }