fix(web): improve settings dialog scroll behavior (#667)

* fix(web): improve settings dialog scroll behavior

- Remove double scroll containers by changing modal-body overflow from auto to hidden, letting only settings-content handle scrolling

- Add min-height: 0 to settings-content and settings-sidebar to allow proper shrinking in grid layout

- Add overscroll-behavior: contain to prevent scroll chaining (scroll bleed-through to parent page)

- Add overflow-y: auto to settings-sidebar for cases where navigation items exceed viewport height

These changes fix the nested scroll issue that caused confusing scroll behavior and prevent content overflow on smaller viewports.

* fix(i18n): add missing Ukrainian translations for promptTemplates

Add promptTemplates.allSources and promptTemplates.sourceFilterAria translations to fix TypeScript error.

apps/web/src/i18n/locales/uk.ts

@@ -167,6 +167,8 @@ export const uk: Dict = {
   'promptTemplates.allSources': 'Усі джерела',
   'promptTemplates.sourceFilterAria': 'Фільтрувати за джерелом',
   'promptTemplates.retry': 'Повторити',
+  'promptTemplates.allSources': 'Усі джерела',
+  'promptTemplates.sourceFilterAria': 'Фільтр за джерелом',
 
   'connectors.title': 'Конектори',
   'connectors.subtitle': 'Локальні та майбутні джерела даних, які можуть живити live-артефакти.',

apps/web/src/index.css

@@ -1119,7 +1119,7 @@ code {
   .modal-settings { max-height: 90vh; }
 }
 .modal-settings .modal-body {
-  overflow-y: auto;
+  overflow: hidden;
   flex: 1;
   min-height: 0;
   display: grid;
@@ -1172,6 +1172,9 @@ code {
   padding: 22px 12px;
   background: var(--bg-subtle);
   border-right: 1px solid var(--border);
+  min-height: 0;
+  overflow-y: auto;
+  overscroll-behavior: contain;
 }
 .settings-nav-item {
   width: 100%;
@@ -1221,8 +1224,10 @@ code {
 }
 .settings-content {
   min-width: 0;
+  min-height: 0;
   padding: 22px var(--modal-padding);
   overflow: auto;
+  overscroll-behavior: contain;
   display: flex;
   flex-direction: column;
   gap: 18px;
@@ -1237,6 +1242,7 @@ code {
   .settings-sidebar {
     flex-direction: row;
     overflow-x: auto;
+    overscroll-behavior-x: contain;
     padding: 10px 12px;
     border-right: 0;
     border-bottom: 1px solid var(--border);