Update the bq Hephestos 2 configuration

Follow-up the PR #4278 (Fixups for PID_ADD_EXTRUSION_RATE and HOTENDS==1)

Follow-up the PR #4252 (Replace PLA/ABS preheating with generic)

Prefix and suffix in debug output

M302: Add "P" parameter, status output

No delay for the smallest LCD moves

Update language_de.h for German translation

Replace PLA/ABS preheating with generic

Don't use UTF-strlen() if the text is not UTF

Remove extraneous conditions for encoder position

Follow-up the PR #4271 (X_DUAL_STEPPER_DRIVERS)

Sled-probe sanity fix, conditionals for remaining types of leveling

Finalalize MSG_SD_WRITE_TO_FILE message with a \n

Make MAPPER_NON the fall back mapper - if no other is defined.
One list less to maintain.

Fixups for PID_ADD_EXTRUSION_RATE and HOTENDS==1

Finalalize MSG_SD_WRITE_TO_FILE message with a \n
else RH hangs.

・Update a forgotten Configuration_adv.h of K8400

Suppress warnings

Follow-up the PR #4024 (Greek Language by @psavva)

Fix for the PR #4256 (Additional tweaks for HOTENDS == 1)

Don't deploy/stow the probe if z-min-endstop is used for homing

Repair M100

X_DUAL_STEPPER_DRIVERS

Improve STATIC_ITEM implementation