Fix ContentErrorView not calculating its text size synchronously (#7281)

It was using a `LaunchedEffect` instead of relying on the `Text(onTextLayout)` parameter.

libraries/matrixui/src/main/kotlin/io/element/android/libraries/matrix/ui/media/contentvalidation/ContentErrorView.kt

@@ -9,26 +9,17 @@ package io.element.android.libraries.matrix.ui.media.contentvalidation
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.material3.Icon
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.movableContentOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.TextLayoutResult
-import androidx.compose.ui.text.rememberTextMeasurer
-import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import io.element.android.compound.theme.ElementTheme
 import io.element.android.compound.tokens.generated.CompoundIcons
@@ -41,7 +32,6 @@ internal fun ContentErrorView(
     contentPadding: PaddingValues = PaddingValues.Zero,
     onTextLayout: ((TextLayoutResult) -> Unit)? = null,
 ) {
-    val updatedOnTextLayout by rememberUpdatedState(onTextLayout)
     Row(
         modifier = modifier
             .background(color = ElementTheme.colors.bgCriticalSubtle)
@@ -61,33 +51,12 @@ internal fun ContentErrorView(
                 color = ElementTheme.colors.textCriticalPrimary,
                 style = ElementTheme.typography.fontBodyMdMedium,
             )
-            val textMeasurer = rememberTextMeasurer()
+            Text(
-            val textContent = remember(message) {
+                text = message,
-                movableContentOf(
+                color = ElementTheme.colors.textSecondary,
-                    @Composable {
+                style = ElementTheme.typography.fontBodySmRegular,
-                        Text(
+                onTextLayout = onTextLayout,
-                            text = message,
+            )
-                            color = ElementTheme.colors.textSecondary,
-                            style = ElementTheme.typography.fontBodySmRegular,
-                        )
-                    }
-                )
-            }
-
-            // BoxWithConstraints is needed to be able to calculate the text layout in the current constraints, so we can pass it to the onTextLayout callback.
-            // However, this can't be used inside a SubComposeLayout (like the one in the text composer), so we only use it when the onTextLayout callback
-            // is provided.
-            if (updatedOnTextLayout != null) {
-                BoxWithConstraints(modifier = Modifier.fillMaxWidth()) {
-                    LaunchedEffect(message) {
-                        updatedOnTextLayout?.invoke(textMeasurer.measure(message, overflow = TextOverflow.Visible, constraints = constraints))
-                    }
-
-                    textContent()
-                }
-            } else {
-                textContent()
-            }
         }
     }
 }