Allow null as Tooltip composable text

briar-desktop/src/main/kotlin/org/briarproject/briar/desktop/blog/BlogPostView.kt

@@ -208,7 +208,7 @@ private fun RepeatAuthorView(
         modifier = modifier,
     ) {
         Tooltip(
-            text = authorClickTooltip ?: "",
+            text = authorClickTooltip,
             modifier = Modifier.weight(1f),
         ) {
             Row(

briar-desktop/src/main/kotlin/org/briarproject/briar/desktop/ui/Tooltip.kt

 /*
  * Briar Desktop
- * Copyright (C) 2021-2022 The Briar Project
+ * Copyright (C) 2021-2023 The Briar Project
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as
@@ -21,6 +21,7 @@ package org.briarproject.briar.desktop.ui
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.TooltipArea
 import androidx.compose.foundation.TooltipPlacement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.Surface
@@ -34,14 +35,20 @@ import androidx.compose.ui.unit.dp
 @Composable
 @OptIn(ExperimentalFoundationApi::class)
 fun Tooltip(
-    text: String,
+    text: String?,
     modifier: Modifier = Modifier,
     delayMillis: Int = 500,
     tooltipPlacement: TooltipPlacement = TooltipPlacement.CursorPoint(
         offset = DpOffset(0.dp, 16.dp)
     ),
     content: @Composable () -> Unit,
-) = TooltipArea(
+) {
+    if (text.isNullOrEmpty()) {
+        Box(modifier = modifier) {
+            content()
+        }
+    } else {
+        TooltipArea(
             tooltip = {
                 Surface(
                     modifier = Modifier.shadow(4.dp),
@@ -58,3 +65,5 @@ fun Tooltip(
             modifier = modifier, // todo: use tooltip text for semantic description
             content = content,
         )
+    }
+}