fix: #3610645 Update core_version_requirement to ~11.4.0 to match the Composer core constraint

Follow-up MR on #3610645.

MR !9 (merged) (merged) updated composer.json to require drupal/core: ~11.4.0. The theme's own vartheme_bs5_educare.info.yml still declared core_version_requirement: ~11.4.1, so on a site running Drupal 11.4.0 Composer would resolve the package while Drupal itself would refuse to install the theme. This aligns the info.yml with the Composer constraint.

core_version_requirement: ~11.4.1   ->   core_version_requirement: ~11.4.0

Tested on Drupal 11.4 / Varbase 11 (DDEV): the Educare site template installs and the theme is set as the default theme.

AI-Generated: Yes (Change drafted with Claude Code; reviewed by rajab-natshah.)

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