Send source with item commands

[ccutrer]

While this PR isn't strictly dependent on openhab/openhab-core#5131, it won't do anything useful without it.

[relativeci]

#3731 Bundle Size — 12.29MiB (~+0.01%).

af48d6c(current) vs c2477c5 main#3728(baseline)

Warning

Bundle contains 2 duplicate packages – View duplicate packages

Bundle metrics   1 change 1 regression

	Current #3731	Baseline #3728
Initial JS	1.52MiB(~+0.01%)	1.52MiB
Initial CSS	0B	0B
Cache Invalidation	7.06%	7.06%
Chunks	612	612
Assets	692	692
Modules	2406	2406
Duplicate Modules	0	0
Duplicate Code	0%	0%
Packages	126	126
Duplicate Packages	1	1

Bundle size by type   1 change 1 regression

	Current #3731	Baseline #3728
JS	10.62MiB (~+0.01%)	10.62MiB
CSS	844.2KiB	844.2KiB
Fonts	526.1KiB	526.1KiB
Media	295.6KiB	295.6KiB
IMG	45.73KiB	45.73KiB
Other	847B	847B

Bundle analysis report Branch ccutrer:command-source Project dashboard

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[florian-h05]

I’d rather send the command to the JSON endpoint where the source can be transmitted in JSON instead of sending it in a header.
WDYT?

[ccutrer]

The mobile developers specifically requested that the web UIs put it in a header because that's easiest for them to intercept from their web views and inject their own package ids.

[florian-h05]

Hmm okay. I personally don’t care wrt to Main UI.