!!! TASK: Remove NodeSearchServiceInterface and implementation

[mhsdesign]

Resolves: #3771

Upgrade instructions

before:

$nodes = $this->nodeSearchService->findByProperties(string $term, array $searchNodeTypes);

after:

$nodes = $this->subgraph->findDescendantNodes(
    $entryNode->nodeAggregateId,
    FindDescendantNodesFilter::create(
        nodeTypes: NodeTypeConstraints::create(
            NodeTypeNames::fromStringArray($searchNodeTypes),
            NodeTypeNames::createEmpty()
        ),
        searchTerm: $term,
    )
);

Review instructions

Checklist

• Code follows the PSR-2 coding style
• Tests have been created, run and adjusted as needed
• The PR is created against the lowest maintained branch
• Reviewer - PR Title is brief but complete and starts with FEATURE|TASK|BUGFIX
• Reviewer - The first section explains the change briefly for change-logs
• Reviewer - Breaking Changes are marked with !!! and have upgrade-instructions