Rename `csv_preview` crate to `tabular_data_preview` (#62768)

# Objective

#60768 renamed the feature (action names, icon, TSV/PSV/SSV support)
from CSV-only to generic tabular data preview, but left the crate itself
named `csv_preview` — no longer accurate now that it handles any
delimited format.

## Solution

Renamed `crates/csv_preview` to `crates/tabular_data_preview` and
updated all references (workspace `Cargo.toml` members/dependencies,
`crates/zed/Cargo.toml`, `crates/zed/src/main.rs`,
`crates/zed/src/zed/quick_action_bar/preview.rs`). No behavior change.

> NOTE: Mechanical changes. Internal structs not renamed on purpose to
reduce git diff noise. Follow-up PRs will do the cleanup (also
mechanical changes)

## Testing

`cargo check -p tabular_data_preview` and `cargo check -p zed` build
clean; preview still opens for csv/tsv/psv/ssv files.
Zed still runs, everything still opens.

## Self-Review Checklist:

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

Release Notes:

- N/A

---------

Co-authored-by: MrSubidubi <finn@zed.dev>
05473ed83dOleksandr Kholiavko committed on 8/18/2026, 10:10:04 AM· committed by GitHubparentfdad918
45 files changedLine totals unavailable