WIP: Shortcuts inhibit protocol

[PolyMeilex]

This is a draft, not ready for review. I did not have time to finish it, so I'm opening a draft, so it's clearly visible and reduces chance of work duplication.

[codecov-commenter]

Codecov Report

Merging #687 (8181c56) into master (07f7091) will decrease coverage by 0.28%. The diff coverage is 7.61%.

@@            Coverage Diff             @@
##           master     #687      +/-   ##
==========================================
- Coverage   29.75%   29.46%   -0.29%     
==========================================
  Files          99      101       +2     
  Lines       15281    15484     +203     
==========================================
+ Hits         4547     4563      +16     
- Misses      10734    10921     +187     

Flag	Coverage Δ
wlcs-core	26.96% <7.61%> (-0.27%)	:arrow_down:
wlcs-output	10.38% <7.61%> (-0.04%)	:arrow_down:
wlcs-pointer-input	29.12% <7.61%> (-0.28%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
anvil/src/input_handler.rs	9.54% <0.00%> (-0.34%)	:arrow_down:
src/wayland/keyboard_shortcuts_inhibit/dispatch.rs	0.00% <0.00%> (ø)
src/wayland/keyboard_shortcuts_inhibit/mod.rs	14.60% <14.60%> (ø)
anvil/src/state.rs	55.88% <30.00%> (-1.34%)	:arrow_down:

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