Unify usage "default system"

[h3lg3]

This PR unifies the usage of default_system for all sequences. Also fixes docstrings by removing "optional" and "default" comments as this is not recommended. Also adapts the default system to standard settings used for sequence programming.

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
src/console
__init__.py	10	1	90%	11
src/console/interfaces
acquisition_data.py	123	25	80%	96–99, 110–111, 129–130, 145–148, 158–159, 188–189, 193–199, 215–216, 227, 231, 249
acquisition_parameter.py	107	4	96%	126, 163, 178, 213
device_configuration.py	55	2	96%	61, 67
dimensions.py	96	22	77%	45–46, 67–68, 71, 79, 89, 95, 101, 107, 113–115, 125–127, 137–139, 149–151
rx_data.py	86	18	79%	77–81, 89, 101, 105, 107, 122, 130–135, 143, 151, 154, 157
src/console/pulseq_interpreter
sequence_provider.py	228	14	94%	100, 247–248, 344–345, 456, 506–507, 576, 602–603, 619, 628, 632
src/console/spcm_control
abstract_device.py	79	79	0%	2–149
acquisition_control.py	156	156	0%	3–365
rx_device.py	209	209	0%	2–493
tx_device.py	175	175	0%	2–465
src/console/spcm_control/spcm
pyspcm.py	161	161	0%	3–295
tools.py	54	54	0%	3–128
src/console/utilities
json_encoder.py	8	3	62%	22–24
load_configuration.py	20	6	70%	18–20, 28–30
plot.py	53	16	70%	31–32, 80–98
src/console/utilities/data
mrd_helper.py	43	8	81%	37, 43, 49, 52, 60, 63, 68, 71
write_acquisition_to_mrd.py	49	5	90%	43–44, 68, 86, 91
src/console/utilities/sequences/calibration
fid_tx_adjust.py	23	1	96%	70
se_tx_adjust.py	30	2	93%	66–68
src/console/utilities/sequences/spectrometry
fid.py	13	1	92%	46
se_spectrum.py	26	2	92%	55, 111
src/console/utilities/sequences/tse
tse_3d.py	242	75	69%	121–122, 124–125, 127–128, 135–136, 138–140, 142–145, 156–159, 164–167, 174–185, 202, 224–231, 237, 268, 331–348, 355–356, 423, 426–438, 546–557
TOTAL	5304	1039	80%

Tests	Skipped	Failures	Errors	Time
193	0 💤	0 ❌	0 🔥	19.852s ⏱️

[h3lg3]

Locally the Static Tests succeeded after running python3 -m pip install types-PyYAML but I dont know how to fix it for the repo.

(console-env) C:\Users\hhert\Git-projects\nexus-console>mypy src
Success: no issues found in 45 source files

[schote]

The default system settings specify block duration raster of 1e-6, I would suggest to also harmonize the exemplary device config in this PR and define identical raster times.