[Bug]: Schema Design Table edit dialog doesn't show length for varchar columns

### Description

mssql: 1.41.0

### Steps to Reproduce

1- open schema design on a db
2- create table with varchar (100) column
3- click on edit on the table
4- check the length of the varchar column

### Affected Area

- [ ] Connection dialog (SQL Server | Azure browse/Fabric browse)
- [ ] Query editor
- [ ] Query results panel
- [ ] Object Explorer
- [ ] GitHub Copilot integration
- [ ] Preview/Edit data
- [ ] Table Designer
- [x] Schema Designer
- [ ] Schema Compare
- [ ] Local SQL Server Container provisioning
- [ ] SQL database in Fabric provisioning
- [ ] DACPAC/BACPAC export/import
- [ ] SQL Database projects
- [ ] Query Plan Visualizer
- [ ] Other (please describe below)

### If you selected "Other", please describe the affected area

_No response_

### Environment Information

mssql: 1.41.0

### Confirmation

- [x] I have searched existing issues and couldn't find a match
- [ ] I want to work on this issue

Start in the Schema Designer flow and reproduce the issue against SQL Server mssql 1.41.0 by creating a table with a varchar(100) column, then opening its edit dialog. Trace how the column definition is displayed; done means the dialog shows the varchar length for the affected column.

Written by the indexing model from the issue text.