[eslint-plugin] Detect aliased imports in no-deprecated-components rules

[adityasingh2400]

Fixes #6408

Checklist

• Includes tests
• Update documentation

Changes proposed in this pull request:

The no-deprecated-components rule family records each deprecated import with both its original name (functionName) and its local name (localFunctionName), but isDeprecatedComponent and the report sites looked the component up in deprecatedComponentConfig by the local JSX name. The config is keyed by the original name, so an aliased import was never flagged:

import { DateInput2 as Foo } from "@blueprintjs/datetime2";
return <Foo />; // not flagged before this change

This change:

• isDeprecatedComponent now matches a deprecated import by localFunctionName and verifies the original functionName is in the config. This keeps the existing distinction that prop-only-deprecated components (which appear only in Component.prop config keys) are not reported as fully-deprecated components.
• A new resolveImportedComponentName helper maps a local/aliased name back to the original imported name, and is used at every report site (JSX element, prop usage, class extends, and Component.ofType() member expressions) so the config resolves and the migration message names the correct replacement.

Reviewers should focus on:

createNoDeprecatedComponentsRule.ts. The squiggle still lands on the alias the user wrote, while the message references the underlying deprecated component (for example Usage of DateInput2 is deprecated, migrate to DateInput). A new invalid test covers import { DateInput2 as MyDateInput } plus <MyDateInput />. All existing deprecated-component rule tests (core/popover2/select/table/datetime2) still pass.

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Type (Select exactly one)

• Feature (Adding new functionality)
• Improvement (Improving existing functionality)
• Fix (Fixing an issue with existing functionality)
• Break (Creating a new major version by breaking public APIs)
• Deprecation (Removing functionality in a non-breaking way)
• Migration (Automatically moving data/functionality to a new system)

Description

[eslint-plugin] Detect aliased imports in no-deprecated-components rules

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[adityasingh2400]

This change is a Fix. The changelog entry is already committed in this PR at packages/eslint-plugin/changelog/@unreleased/pr-8159.v2.yml, so the @unreleased entry is in place. If you would prefer it be generated through this bot instead, the type is Fix and the description matches the PR title.