ATLAS-5296: ATLAS UI: React UI fixes, audit table pagination text, Masonry grid

[pawarprasad123]

What changes were proposed in this pull request?

Administrator — Audit pagination

The audit API does not provide a global total. The shared table footer was effectively treating the current page size as the total, producing misleading text (e.g. “Showing 26–50 of 25”).

paginationSummaryVariant="audit" on the admin audit table only.
Footer copy: Showing {n} records From {start} - {end} using offset + current page row count (last page shows the real partial count).

Files: AdminAuditTable.tsx, TableLayout.tsx, TablePagination.tsx, tableLayoutType.ts, COMPREHENSIVE_TEST_DOCUMENTATION.md (note only).

Masonry layout (new)

Adds a responsive CSS Grid–based masonry-style layout and card wrapper, with local styles.

dashboard/src/components/Masonry/MasonryGrid.tsx
dashboard/src/components/Masonry/MasonryCard.tsx
dashboard/src/components/Masonry/masonry.css
dashboard/src/views/MasonryDemo.tsx (demo; not wired to Router.tsx unless you add a route in a follow-up)

Other UI / behavior fixes (high level)

Session / config: Global.ts uses nullish coalescing where false/0 must be preserved; sessionSlice improves rejected-action error messaging.
Components: QueryBuilder Filters default for BM defs; ShowMore edge cases; Table pagination a11y (role, aria-label); CustomButton forwards extra props; DatePicker header prop typing; Import layout keys and file-size display; mui / lineage / search result fixes.
Detail / entity: Safer parsing and defaults (BM, classification layouts, attribute tables, audit details, lineage, glossary term panels, relationship lineage keys and D3 guard); EntityForm reducer export and safer entity name extraction; layout header QuickSearch visibility and session modal close handler fix.
Statistics: ServerStats nested metric key handling and stable table cell keys.
Misc: RelationShipSearch entity-def lookup and column merge; Utils comment; trivial license whitespace where touched.

How was this patch tested?

Manual test



<img width="1849" height="1131" alt="image" src="https://github.com/user-attac

hments/assets/2279dfad-d6d6-4d8a-9a83-6eafb4d2ea8a" />