fix(tables): unsubscribe the row deselect handler on unmount

subscribe and unsubscribe were both handed a freshly created arrow function, so
the two never matched and the handler outlived the component. Every table that
had been mounted kept answering the event, deselecting rows in tables the user
had already navigated away from.

Assisted-by: ClaudeCode:claude-opus-5
Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

Author: AndyScherzinger

src/shared/components/ncTable/sections/CustomTable.vue

@@ -315,14 +315,14 @@ export default {
 			this.pendingTitleMeasure = window.requestAnimationFrame(() => this.updateCardTitleLines())
 		})
 		this.$nextTick(() => this.observeCardLayout())
-		subscribe('tables:selected-rows:deselect', ({ elementId, isView }) => this.deselectAllRows(elementId, isView))
+		subscribe('tables:selected-rows:deselect', this.handleDeselectAllRows)
 		subscribe('tables:row:animate', this.enableRowAnimation)
 		subscribe(PAGINATION_CHANGED, this.handlePaginationChanged)
 	},
 	beforeUnmount() {
 		window.cancelAnimationFrame(this.pendingTitleMeasure)
 		this.cardResizeObserver?.disconnect()
-		unsubscribe('tables:selected-rows:deselect', ({ elementId, isView }) => this.deselectAllRows(elementId, isView))
+		unsubscribe('tables:selected-rows:deselect', this.handleDeselectAllRows)
 		unsubscribe('tables:row:animate', this.enableRowAnimation)
 		unsubscribe(PAGINATION_CHANGED, this.handlePaginationChanged)
 	},
@@ -391,6 +391,11 @@ export default {
 				this.rowsPerPage = payload.rowsPerPage
 			}
 		},
+		// A named handler, so beforeUnmount can actually remove it: unsubscribe compares by
+		// reference and a fresh arrow function never matches the one that was subscribed.
+		handleDeselectAllRows({ elementId, isView }) {
+			this.deselectAllRows(elementId, isView)
+		},
 		deselectAllRows(elementId, isView) {
 			if (parseInt(elementId) === parseInt(this.elementId) && isView === this.isView) {
 				this.selectedRows = []