Limit the text length in the 'in reply to' preview (#4491)

* Limit the text length in the 'in reply to' preview

Otherwise, very long texts with no line breaks can cause a Compose crash

libraries/core/src/main/kotlin/io/element/android/libraries/core/extensions/BasicExtensions.kt

@@ -98,3 +98,22 @@ fun String.ensureEndsLeftToRight() = if (containsRtLOverride()) "$this$LTR_OVERR
 fun String.containsRtLOverride() = contains(RTL_OVERRIDE_CHAR)
 
 fun String.filterDirectionOverrides() = filterNot { it == RTL_OVERRIDE_CHAR || it == LTR_OVERRIDE_CHAR }
+
+/**
+ * This works around https://github.com/element-hq/element-x-android/issues/2105.
+ * @param maxLength Max characters to retrieve. Defaults to `500`.
+ * @param ellipsize Whether to add an ellipsis (`…`) char at the end or not. Defaults to `false`.
+ * @return The string truncated to [maxLength] characters, with an optional ellipsis if larger.
+ */
+fun String.toSafeLength(
+    maxLength: Int = 500,
+    ellipsize: Boolean = false,
+): String {
+    return if (ellipsize) {
+        ellipsize(maxLength)
+    } else if (length > maxLength) {
+        take(maxLength)
+    } else {
+        this
+    }
+}