fix(ui): Disclaimer-Modal Scroll und Schließen-Button

Ein Scrollbereich im Hinweis-Dialog, Body-Lock beim Öffnen, X oben rechts an der Karte.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/App.css

@@ -567,18 +567,16 @@ html.scheme-dark .themed-select-option.is-selected {
 }
 
 .registration-disclaimer--modal {
+  position: relative;
   width: min(560px, calc(100vw - 32px));
   margin: 0;
 }
 
-.registration-disclaimer .auth-header {
-  position: relative;
-}
-
 .registration-disclaimer__close {
   position: absolute;
-  top: 0;
-  right: 0;
+  top: 12px;
+  right: 12px;
+  z-index: 1;
   display: inline-flex;
   align-items: center;
   justify-content: center;
@@ -604,6 +602,7 @@ html.scheme-dark .themed-select-option.is-selected {
   align-items: center;
   justify-content: center;
   padding: 16px;
+  overflow: hidden;
   background: rgba(2, 6, 23, 0.72);
 }
 
@@ -611,7 +610,20 @@ html.scheme-dark .themed-select-option.is-selected {
   width: 100%;
   max-width: 560px;
   max-height: min(90vh, 820px);
-  overflow-y: auto;
+  display: flex;
+  flex-direction: column;
+  min-height: 0;
+  overflow: hidden;
+}
+
+.disclaimer-modal-panel > .registration-disclaimer {
+  flex: 1 1 auto;
+  min-height: 0;
+  max-height: 100%;
+  width: 100%;
+  max-width: 100%;
+  overflow: hidden;
+  box-sizing: border-box;
 }
 
 .feedback-modal {
@@ -910,6 +922,7 @@ html.scheme-dark .themed-select-option.is-selected {
 
 .registration-disclaimer__sections {
   flex: 1;
+  min-height: 0;
   overflow-y: auto;
   display: flex;
   flex-direction: column;