x en y position directly after Pipe instead of after all properties

**Describe the bug**
I think it is more clear to write the X and Y position of a pipe directly after its name. now it might be mixed up in the normal attributes

**Reporter**
jjansenvr

**Category**
Use the following Tags to categorize your bug report

- Explorer
- Editor
- Flow
- Pipe options
- Palette
- Settings

**To Reproduce**
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
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**Additional context**
Add any other context about the problem here. (f.e. ladybug report, console error or test adapter with larva test)

The issue provides XsltPipe XML examples showing the current and desired attribute order. Locate the serialization or generation path for XsltPipe attributes, then verify that flow:x and flow:y appear directly after the element name and before the other properties.

Written by the indexing model from the issue text.