CAM: Having two ways of managing job tools is confusing for newcomers

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Problem description

I think these two should get merged. It confused me as a newcomer that there are two redundant ways of adding bits:


And don't get me wrong. I prefer the way the right one is docked. But i don't like the idea of opening that window through anything else than job edit... Because when i first started with freecad cam, i didn't even knew i can add tools via job edit and this thing only gave me illusion that im on the right track doing it in some other ways...

### Full version info

```shell
OS: Arch Linux (XFCE/Xfce Session/xcb)
Architecture: x86_64
Version: 1.1.0dev.14555 (Git shallow) AppImage
Build date: 2025/06/02 18:42:58
Build type: Release
Branch: main
Hash: 997d485124fab7b9ba971df59e91b55aeb5de61a
Python 3.11.12, Qt 6.7.3, Coin 4.0.3, Vtk 9.3.1, boost 1_86, Eigen3 3.4.0, PySide 6.7.3
shiboken 6.7.3, xerces-c 3.3.0, IfcOpenShell 0.8.2, OCC 7.8.1
Locale: Czech/Czechia (cs_CZ)
Navigation Style/Orbit Style/Rotation Mode: OpenSCAD/Turntable/Object center
Stylesheet/Theme/QtStyle: FreeCAD Dark.qss/FreeCAD Dark/
Logical DPI/Physical DPI/Pixel Ratio: 90/172.811/1
Installed mods:
* sheetmetal 0.7.22
* Curves 0.6.58
```

### Subproject(s) affected?

CAM

### Anything else?

_No response_

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct