upower: Comment-out unused code

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
upower: Set section instance name

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
sensors: Reorder init

We should not poke the config file if the sensors system cannot be
initialized

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
time: More detailed wrong Formats key warning

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
sensors: Set section instance name

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
J4statusSection: Make instance name creation-time only

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
j4status-plugin.h: Reorder

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
j4status-plugin: Hide core context in core interface

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
J4statusSection: Require core interface

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
j4status: Handle the section list directly in core

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>