fix: prevent Poll from shrinking

Author: MartinCupela

src/components/Poll/styling/Poll.scss

@@ -6,8 +6,13 @@
     flex-direction: column;
     gap: var(--str-chat__spacing-xl);
     padding: var(--str-chat__spacing-xs);
-    min-width: min(260px, 100%);
+    width: calc(
+        var(--str-chat__message-with-attachment-max-width) - calc(
+        2 * var(--str-chat__spacing-xs)
+        )
+    );
     max-width: 100%;
+    min-width: min(260px, 100%);
     font: var(--str-chat__font-caption-default);
 
     button {