(core) Raw renames

Summary:
A new way for renaming tables.

  - There is a new popup to rename section (where you can also rename the table)
  - Renaming/Deleting page doesn't modify/delete the table.
  - Renaming table can rename a page if the names match (and the page contains a section with that table).
  - User can rename table in Raw Data UI in two ways - either on the listing or by using the section name popup
  - As before, there is no way to change tableId - it is derived from a table name.
  - When the section name is empty the table name is shown instead.
  - White space for section name is allowed (to discuss) - so the user can just paste '   '.
  - Empty name for a page is not allowed (but white space is).
  - Some bugs related to deleting tables with attached summary tables (and with undoing this operation) were fixed (but not all of them yet).

Test Plan: Updated tests.

Reviewers: georgegevoian

Reviewed By: georgegevoian

Subscribers: georgegevoian

Differential Revision: https://phab.getgrist.com/D3360

app/client/models/SearchModel.ts

@@ -192,7 +192,7 @@ class FinderImpl implements IFinder {
                               // Filter out those we don't have permissions to see (through ACL-tableId will be empty).
                               .filter(t => Boolean(t.tableId.peek()))
                               // sort in order that is the same as on the raw data list page,
-                              .sort((a, b) => nativeCompare(a.tableTitle.peek(), b.tableTitle.peek()))
+                              .sort((a, b) => nativeCompare(a.tableNameDef.peek(), b.tableNameDef.peek()))
                               // get rawViewSection,
                               .map(t => t.rawViewSection.peek())
                               // and test if it isn't an empty record.