v1.0.52: fix Select button cut off on Android 16 edge-to-edge dialogs

Android 15+ enforces edge-to-edge on Dialog windows, making standard
Compose WindowInsets APIs return 0 inside dialogs. Fix: use ViewCompat
insets listener inside the Dialog to read actual system bar heights,
with 56dp minimum to guarantee full nav bar clearance. Spacer inside
the button Surface lets the elevated background extend behind the nav
bar. Also make the entire local folder field tappable (not just the
trailing icon) for better UX.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/src/main/kotlin/com/syncflow/ui/addpair/AddPairScreen.kt

@@ -1,6 +1,7 @@
 package com.syncflow.ui.addpair
 
 import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.KeyboardOptions
@@ -105,18 +106,17 @@ fun AddPairScreen(onDone: () -> Unit, vm: AddPairViewModel = hiltViewModel()) {
                 Spacer(Modifier.height(4.dp))
 
                 // Local folder
-                OutlinedTextField(
-                    value = uriToDisplay(s.localPath), onValueChange = {},
-                    label = { Text("Local folder") },
-                    leadingIcon = { Icon(Icons.Default.PhoneAndroid, null) },
-                    trailingIcon = {
-                        IconButton(onClick = { showLocalBrowser = true }) {
-                            Icon(Icons.Default.FolderOpen, "Browse")
-                        }
-                    },
-                    readOnly = true, singleLine = true, modifier = Modifier.fillMaxWidth(),
-                    placeholder = { Text("Tap to choose folder…") },
-                )
+                Box(modifier = Modifier.fillMaxWidth()) {
+                    OutlinedTextField(
+                        value = uriToDisplay(s.localPath), onValueChange = {},
+                        label = { Text("Local folder") },
+                        leadingIcon = { Icon(Icons.Default.PhoneAndroid, null) },
+                        trailingIcon = { Icon(Icons.Default.FolderOpen, null) },
+                        readOnly = true, singleLine = true, modifier = Modifier.fillMaxWidth(),
+                        placeholder = { Text("Tap to choose folder…") },
+                    )
+                    Box(modifier = Modifier.matchParentSize().clickable { showLocalBrowser = true })
+                }
 
                 // Remote folder
                 OutlinedTextField(