Deprioritize Flathub (#53857)

Self-Review Checklist:

- [ ] I've reviewed my own diff for quality, security, and reliability
- [ ] Unsafe blocks (if any) have justifying comments
- [ ] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [ ] Tests cover the new/changed behavior
- [ ] Performance impact has been considered and is acceptable

Closes #ISSUE

Release Notes:

- N/A

---------

Co-authored-by: Kunall Banerjee <hey@kimchiii.space>

docs/src/linux.md

@@ -42,18 +42,18 @@ Zed is open source, and [you can install from source](./development/linux.md).
 
 There are several third-party Zed packages for various Linux distributions and package managers, sometimes under `zed-editor`. You may be able to install Zed using these packages:
 
-- Flathub: [`dev.zed.Zed`](https://flathub.org/apps/dev.zed.Zed)
 - Arch: [`zed`](https://archlinux.org/packages/extra/x86_64/zed/)
 - Arch (AUR): [`zed-git`](https://aur.archlinux.org/packages/zed-git), [`zed-preview`](https://aur.archlinux.org/packages/zed-preview), [`zed-preview-bin`](https://aur.archlinux.org/packages/zed-preview-bin)
 - Alpine: `zed` ([aarch64](https://pkgs.alpinelinux.org/package/edge/testing/aarch64/zed)) ([x86_64](https://pkgs.alpinelinux.org/package/edge/testing/x86_64/zed))
+- Fedora/Ultramarine (Terra): [`zed`](https://github.com/terrapkg/packages/tree/frawhide/anda/devs/zed/stable), [`zed-preview`](https://github.com/terrapkg/packages/tree/frawhide/anda/devs/zed/preview), [`zed-nightly`](https://github.com/terrapkg/packages/tree/frawhide/anda/devs/zed/nightly)
+- Manjaro: [`zed`](https://manjaristas.org/branch_compare?q=zed)
 - Conda: [`zed`](https://anaconda.org/conda-forge/zed)
 - Nix: `zed-editor` ([unstable](https://search.nixos.org/packages?channel=unstable&show=zed-editor))
-- Fedora/Ultramarine (Terra): [`zed`](https://github.com/terrapkg/packages/tree/frawhide/anda/devs/zed/stable), [`zed-preview`](https://github.com/terrapkg/packages/tree/frawhide/anda/devs/zed/preview), [`zed-nightly`](https://github.com/terrapkg/packages/tree/frawhide/anda/devs/zed/nightly)
 - Solus: [`zed`](https://github.com/getsolus/packages/tree/main/packages/z/zed)
 - Parabola: [`zed`](https://www.parabola.nu/packages/extra/x86_64/zed/)
-- Manjaro: [`zed`](https://packages.manjaro.org/?query=zed)
 - ALT Linux (Sisyphus): [`zed`](https://packages.altlinux.org/en/sisyphus/srpms/zed/)
 - AOSC OS: [`zed`](https://packages.aosc.io/packages/zed)
+- Flathub: [`dev.zed.Zed`](https://flathub.org/apps/dev.zed.Zed) (WARNING: [Sandboxing causes problems](https://github.com/flathub/dev.zed.Zed/pull/275))
 
 See [Repology](https://repology.org/project/zed-editor/versions) for a list of Zed packages in various repositories.