feat(filters): make the topic Any/All match toggle prominent

The AND/OR ("Any"/"All") control for topic chips was a single faint corner link
that was easy to miss. Replace it with a labelled segmented control ("Match:
[Any][All]") so the AND option is discoverable. New trilingual 'match' label.

frontend/src/i18n/locales/de/sidebar.json

@@ -19,6 +19,7 @@
   "any": "Beliebig",
   "all": "Alle",
   "tagModeTooltip": "Beliebige vs. alle ausgewählten Tags treffen",
+  "match": "Treffer",
   "custom": "Benutzerdefiniert",
   "from": "Von",
   "to": "Bis",

frontend/src/i18n/locales/en/sidebar.json

@@ -19,6 +19,7 @@
   "any": "Any",
   "all": "All",
   "tagModeTooltip": "Match any vs all selected tags",
+  "match": "Match",
   "custom": "Custom",
   "from": "From",
   "to": "To",

frontend/src/i18n/locales/hu/sidebar.json

@@ -19,6 +19,7 @@
   "any": "Bármelyik",
   "all": "Összes",
   "tagModeTooltip": "Bármelyik vagy az összes kijelölt címke illeszkedjen",
+  "match": "Egyezés",
   "custom": "Egyéni",
   "from": "Ettől",
   "to": "Eddig",