[stable10] Center the logo and login fields

[DeepDiver1975]

Force constant vertical height for login box over all devices

backport #33375

[codecov]

Codecov Report

Merging #34057 into stable10 will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             stable10   #34057   +/-   ##
===========================================
  Coverage       63.56%   63.56%           
  Complexity      19109    19109           
===========================================
  Files            1264     1264           
  Lines           75147    75147           
  Branches         1286     1286           
===========================================
  Hits            47770    47770           
  Misses          27001    27001           
  Partials          376      376

Flag	Coverage Δ	Complexity Δ
#javascript	53.32% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	64.66% <ø> (ø)	19109 <ø> (ø)	⬇️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[codecov]

Codecov Report

Merging #34057 into stable10 will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             stable10   #34057   +/-   ##
===========================================
  Coverage       63.56%   63.56%           
  Complexity      19109    19109           
===========================================
  Files            1264     1264           
  Lines           75147    75147           
  Branches         1286     1286           
===========================================
  Hits            47770    47770           
  Misses          27001    27001           
  Partials          376      376

Flag	Coverage Δ	Complexity Δ
#javascript	53.32% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	64.66% <ø> (ø)	19109 <ø> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0a3c623...c189588. Read the comment docs.

[codecov]

Codecov Report

Merging #34057 into stable10 will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             stable10   #34057   +/-   ##
===========================================
  Coverage       63.56%   63.56%           
  Complexity      19109    19109           
===========================================
  Files            1264     1264           
  Lines           75147    75147           
  Branches         1286     1286           
===========================================
  Hits            47770    47770           
  Misses          27001    27001           
  Partials          376      376

Flag	Coverage Δ	Complexity Δ
#javascript	53.32% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	64.66% <ø> (ø)	19109 <ø> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0a3c623...c189588. Read the comment docs.

[PVince81]

👍