Add empty context menu

[SchrodingersGat]

• For tables without "row actions"
• Show an "empty" menu
• For UX consistency across all tables

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Name	Link
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[wolflu05]

Maybe we can add a small text like No actions or so in the context menu.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 84.50%. Comparing base (e4a3969) to head (0a1b8e7). Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/frontend/src/tables/InvenTreeTable.tsx	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #8519 +/- ## ========================================== - Coverage 84.52% 84.50% -0.03% ========================================== Files 1177 1176 -1 Lines 53565 53556 -9 Branches 2025 2023 -2 ========================================== - Hits 45278 45258 -20 - Misses 7762 7790 +28 + Partials 525 508 -17 ``` | [Flag](https://app.codecov.io/gh/inventree/InvenTree/pull/8519/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=inventree) | Coverage Δ | | |---|---|---| | [pui](https://app.codecov.io/gh/inventree/InvenTree/pull/8519/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=inventree) | `68.71% <0.00%> (-0.15%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=inventree#carryforward-flags-in-the-pull-request-comment) to find out more.

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[wolflu05]

Maybe we can add a small text like No actions or so in the context menu.

@SchrodingersGat thoughts?

[SchrodingersGat]

@wolflu05 oops, didn't see your comment before merging. That would be a good addition I think