feat(linter/vue): implement no-shared-component-data rule

[babu-ch]

Implements vue/no-shared-component-data (vue3-essential + vue2-essential).

AI disclosure: implemented with Claude Code, reviewed manually.

Part of #11440 (eslint-plugin-vue rules).

[codspeed-hq]

Merging this PR will not alter performance

✅ 4 untouched benchmarks
⏩ 47 skipped benchmarks¹

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_{Comparing babu-ch:feat/vue-no-shared-component-data (a6aefa7) with main (d82f698)}

Footnotes

1. 47 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩