Fix alignment of avatar according to Figma

https://www.figma.com/design/7TqjqdMBaPpm3IavKsMYu6/Ask-to-join-(Knocking)?node-id=4856-42262

features/knockrequests/impl/src/main/kotlin/io/element/android/features/knockrequests/impl/banner/KnockRequestsBannerView.kt

@@ -23,6 +23,7 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.drawWithContent
 import androidx.compose.ui.geometry.Offset
@@ -101,7 +102,10 @@ private fun KnockRequestsBannerContent(
             .padding(all = 16.dp)
     ) {
         Row {
-            KnockRequestAvatarView(state.knockRequests)
+            KnockRequestAvatarView(
+                state.knockRequests,
+                modifier = Modifier.align(Alignment.CenterVertically),
+            )
             Spacer(modifier = Modifier.width(10.dp))
             Column(modifier = Modifier.weight(1f)) {
                 Text(