fix: resolve MenuFABItem function name collision

- Rename MenuFABItem to OverlayMenuFABItem in FloatingComposeOverlay
- Fixes overload resolution ambiguity between two files
- Both FloatingUIActivity and FloatingComposeOverlay had same function name

🤖 Generated with [Claude Code](https://claude.ai/code)

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

app/src/main/java/com/quillstudios/pokegoalshelper/ui/FloatingComposeOverlay.kt

@@ -192,7 +192,7 @@ fun FloatingFABContent(
                 modifier = Modifier.padding(bottom = 16.dp)
             ) {
                 // Menu FAB items
-                MenuFABItem(
+                OverlayMenuFABItem(
                     icon = Icons.Default.Search,
                     label = "DETECT",
                     containerColor = MaterialTheme.colorScheme.primary,
@@ -203,7 +203,7 @@ fun FloatingFABContent(
                     }
                 )
                 
-                MenuFABItem(
+                OverlayMenuFABItem(
                     icon = Icons.Default.Star,
                     label = "SHINY",
                     containerColor = MaterialTheme.colorScheme.tertiary,
@@ -215,7 +215,7 @@ fun FloatingFABContent(
                     }
                 )
                 
-                MenuFABItem(
+                OverlayMenuFABItem(
                     icon = Icons.Default.AccountCircle,
                     label = "POKEBALL",
                     containerColor = MaterialTheme.colorScheme.error,
@@ -227,7 +227,7 @@ fun FloatingFABContent(
                     }
                 )
                 
-                MenuFABItem(
+                OverlayMenuFABItem(
                     icon = Icons.Default.List,
                     label = "ALL",
                     containerColor = MaterialTheme.colorScheme.secondary,
@@ -239,7 +239,7 @@ fun FloatingFABContent(
                     }
                 )
                 
-                MenuFABItem(
+                OverlayMenuFABItem(
                     icon = Icons.Default.Build,
                     label = "DEBUG",
                     containerColor = MaterialTheme.colorScheme.outline,
@@ -306,7 +306,7 @@ fun FloatingFABContent(
 }
 
 @Composable
-fun MenuFABItem(
+fun OverlayMenuFABItem(
     icon: ImageVector,
     label: String,
     containerColor: Color,