feat(core, editor): Support pairedItem for pinned data (#3843)

* 📘 Adjust interface

* ⚡ Adjust pindata in state store

* ✨ Add utils

* ⚡ Replace utils calls

* ⚡ Adjust pindata intake and display

* 🔥 Remove excess BE fixes

* 📝 Update comment

* 🧪 Adjust tests

* 🔥 Remove unneeded helper

* 🚚 Improve naming

* 🧹 Clean up `ormconfig.ts`

* 📘 Add types and type guards

* ⚡ Improve serializer for sqlite

* ✨ Create migration utils

* ⚡ Set up sqlite serializer

* 🗃️ Write sqlite migration

* 🗃️ Write MySQL migration

* 🗃️ Write Postgres migration

* ⚡ Add imports and exports to barrels

* 🚚 Rename `runChunked` to `runInBatches`

* ⚡ Improve migration loggers

* ♻️ Address feedback

* 🚚 Improve naming

packages/editor-ui/src/utils.ts

@@ -1 +1,14 @@
 export const omit = (keyToOmit: string, { [keyToOmit]: _, ...remainder }) => remainder;
+
+export function isObjectLiteral(maybeObject: unknown): maybeObject is { [key: string]: string } {
+	return typeof maybeObject === 'object' && maybeObject !== null && !Array.isArray(maybeObject);
+}
+
+export function isJsonKeyObject(item: unknown): item is {
+	json: unknown;
+	[otherKeys: string]: unknown;
+} {
+	if (!isObjectLiteral(item)) return false;
+
+	return Object.keys(item).includes('json');
+}