Setting extruder temp sets temp wrong extruder for Prusa XL

[morphias2004]

Describe the bug
When you set the extruder temp via the main screen on OctoDash, it sets the temp on Tool 1 (Tool 0) instead of the currently loaded tool.

To Reproduce
Steps to reproduce the behavior:

1. Pick up any tool other than Tool 1
2. Set the extruder temp via OctoDash touch interface
3. Watch Tool 1 extruder temp rise and nothing happen on the currently loaded tool.

Expected behavior
The command should go to the currently loaded tool.

GCode needs to go out as

M104 T{current_extruder} S%desired temp%

{current_extruder} is a Prusa placeholder.

https://help.prusa3d.com/article/list-of-placeholders_205643

Further to this, the main page is hard coded to Tool 0 thoughout. As a result, the temp of Tool 1 is only ever displayed.

General Information:

• RPi 4 4GB Prusa XL 5 tool head on FW 6.0.1
• OctoPi/ OctoPrint v 1.10.1
• OctoDash Version [v2.3.1

[morphias2004]

Working with a friend, he has now opened this directly related ticket for OctoPrint:

OctoPrint/OctoPrint#5018