'sticky' is defined as an accessor in class 'CdkColumnDef', but is overridden here in 'NbColumnDefDirective' as an instance property.

### Issue type

**I'm submitting a ...** (check one with "x")

* [ x] bug report
* [ ] feature request

### Issue description

**Current behavior:**
When compiling my Angular project with Angular at v18, I get the error
```
Error: node_modules/@nebular/theme/components/cdk/table/cell.d.ts:38:5 - error TS2610: 'sticky' is defined as an accessor in class 'CdkColumnDef', but is overridden here in 'NbColumnDefDirective' as an instance property.

38 sticky: boolean;
```

**Expected behavior:**
Should not have compilation error.

**Steps to reproduce:**
Import `@nebular/theme` version 13.0.0 as a module into an angular project of version 18 (latest).

-->

### Other information:

**npm, node, OS, Browser**
```

```

**Angular, Nebular**
```
angular: v18.0.4
```