Make the overview answer the year-by-year question

The dashboard now leads with a typographic headline, three key
figures, per-parent age-4 bars and one row per year until the fourth
birthday. Each year row shows the timeline bands beside each parent's
parental-leave days left at year end and vacation days left, carried
over or expiring, and opens into a per-parent table with that year's
wish outcomes. Tips become a plain list and absorb the planner's
surplus advice; "Detaljer" keeps the metrics and a balance snapshot
for every parent. The separate plan-proposal fold and the
type-count table are gone.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XBRLomdLK9jF7wU7a8AA6H

frontend/src/styles/global.css

@@ -77,6 +77,9 @@
   /* Leave types: fill / ink / outline */
   --c-leave-vacation: #eef2fe;
   --c-leave-vacation-ink: #2f5bea;
+  /* Stronger vacation step for thin (8px) timeline tracks only — the tint
+   * above vanishes on white at that height. Calendar bands keep the tint. */
+  --c-leave-vacation-bar: #b9c9f7;
   --c-leave-sjukpenning: #2a2d35;
   --c-leave-sjukpenning-ink: #fff;
   --c-leave-lagsta: #fff;