web: Fix application of global styles in style roots.

[GirlBossRush]

Details

This PR separates styles applied to the document root and body, fixing two issues:

• Global variables are no longer injected twice that mess with precedence on default values.
• Global styles which cannot apply in element style roots are no longer parsed and injected

Blocking Dependents

• web: Flow Layout Refinements #17472

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 41.78%. Comparing base (5e0bc44) to head (54647b4).
✅ All tests successful. No failed tests found.

❗ There is a different number of reports uploaded between BASE (5e0bc44) and HEAD (54647b4). Click for more details.

HEAD has 24 uploads less than BASE

Flag	BASE (5e0bc44)	HEAD (54647b4)
e2e	8	4
unit	10	0
unit-migrate	10	0

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #17444       +/-   ##
===========================================
- Coverage   92.92%   41.78%   -51.14%     
===========================================
  Files         868      862        -6     
  Lines       47907    47414      -493     
===========================================
- Hits        44517    19814    -24703     
- Misses       3390    27600    +24210     

Flag	Coverage Δ
e2e	40.75% <ø> (-4.46%)	⬇️
integration	23.18% <ø> (+<0.01%)	⬆️
unit	?
unit-migrate	?

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[github-actions]

authentik PR Installation instructions

Instructions for docker-compose

Add the following block to your .env file:

AUTHENTIK_IMAGE=ghcr.io/goauthentik/dev-server
AUTHENTIK_TAG=gh-54647b46fd34191f3de380e4f58d3577dfcd8f12
AUTHENTIK_OUTPOSTS__CONTAINER_IMAGE_BASE=ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s

Afterwards, run the upgrade commands from the latest release notes.

Instructions for Kubernetes

Add the following block to your values.yml file:

authentik:
    outposts:
        container_image_base: ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s
global:
    image:
        repository: ghcr.io/goauthentik/dev-server
        tag: gh-54647b46fd34191f3de380e4f58d3577dfcd8f12

Afterwards, run the upgrade commands from the latest release notes.