test(system): compare Backup & export with the concept

system-backups-concept.spec compares the section, the Restore preview and the
Import & inspect dialog with the concept in both themes at 1600 and 390 wide,
mapping only D103, D104, D105 (and D15/D55 for the shared Import dialog), and
proves a renamed label, a removed row, a lost danger mark and swapped tokens
are noticed. A review's grid values now wrap anywhere (D105), so a long backup
file name keeps the concept's two equal columns at phone width.

Refs #326

web/js/workspace/workspace.css

@@ -423,6 +423,9 @@ pre.prompt-text { font: inherit; font-size: 12px; line-height: 1.75; margin-bloc
 /* D101: a duplicate copy's Keep label is its source and path, often long names with no space to break at; it wraps
    inside its `.compare-item` so the review never scrolls sideways. */
 .duplicate-groups .compare-item label { overflow-wrap: anywhere; /* D101 */ }
+/* D105: a review's grid values (the restore's backup file name, a safety backup's name) may be long names with no space
+   to break at; they wrap inside their column, so the concept's two equal columns hold at phone width. */
+#modal-body > dl.meta-grid dd { overflow-wrap: anywhere; /* D105 */ }
 /* D106: Integrations' two selects keep their chosen option readable: they never shrink for the row's reason lines, and
    at phone width they may grow past the concept's 120px cap (which cuts "Follow host renderer") up to 160px. */
 .setting-row :is(#send-destination, #renderer) { flex-shrink: 0; /* D106 */ }