(core) Fixing cursor position for filtered linked section.

Summary:
In a selector table, when a selected row is filtered out of view, linked widgets should update based on the newly selected row.
There were a few bugs that contributed to this wrong behavior:
- Gridview wasn't subscribing to the current row id, and the row with id 'new' was being converted to the first row
- Cursor was keeping track of the currently selected row id, it was hiding a problem behind the proper rowIndex
- Undo/redo somehow leveraged the wrong rowId from the cursor during the position restore.

The `No data` text was also changed to be more meaningful.

Test Plan: Added and updated.

Reviewers: georgegevoian

Reviewed By: georgegevoian

Differential Revision: https://phab.getgrist.com/D3937

app/client/models/DocModel.ts

@@ -29,8 +29,7 @@ import {isHiddenTable, isSummaryTable} from 'app/common/isHiddenTable';
 import {canEdit} from 'app/common/roles';
 import {RowFilterFunc} from 'app/common/RowFilterFunc';
 import {schema, SchemaTypes} from 'app/common/schema';
-import {UIRowId} from 'app/common/UIRowId';
-
+import {UIRowId} from 'app/common/TableData';
 import {ACLRuleRec, createACLRuleRec} from 'app/client/models/entities/ACLRuleRec';
 import {ColumnRec, createColumnRec} from 'app/client/models/entities/ColumnRec';
 import {createDocInfoRec, DocInfoRec} from 'app/client/models/entities/DocInfoRec';
@@ -318,7 +317,7 @@ export class DocModel {
  */
 function createTablesArray(
   tablesModel: MetaTableModel<TableRec>,
-  filterFunc: RowFilterFunc<rowset.RowId> = (_row) => true
+  filterFunc: RowFilterFunc<UIRowId> = (_row) => true
 ) {
   const rowSource = new rowset.FilteredRowSource(filterFunc);
   rowSource.subscribeTo(tablesModel);