docs: fix scroll_speed default value (#7867)

packages/web/src/content/docs/config.mdx

@@ -168,7 +168,7 @@ You can configure TUI-specific settings through the `tui` option.
 Available options:
 
 - `scroll_acceleration.enabled` - Enable macOS-style scroll acceleration. **Takes precedence over `scroll_speed`.**
-- `scroll_speed` - Custom scroll speed multiplier (default: `1`, minimum: `1`). Ignored if `scroll_acceleration.enabled` is `true`.
+- `scroll_speed` - Custom scroll speed multiplier (default: `3`, minimum: `1`). Ignored if `scroll_acceleration.enabled` is `true`.
 - `diff_style` - Control diff rendering. `"auto"` adapts to terminal width, `"stacked"` always shows single column.
 
 [Learn more about using the TUI here](/docs/tui).

packages/web/src/content/docs/tui.mdx

@@ -358,7 +358,7 @@ You can customize TUI behavior through your OpenCode config file.
 ### Options
 
 - `scroll_acceleration` - Enable macOS-style scroll acceleration for smooth, natural scrolling. When enabled, scroll speed increases with rapid scrolling gestures and stays precise for slower movements. **This setting takes precedence over `scroll_speed` and overrides it when enabled.**
-- `scroll_speed` - Controls how fast the TUI scrolls when using scroll commands (minimum: `1`). Defaults to `1` on Unix and `3` on Windows. **Note: This is ignored if `scroll_acceleration.enabled` is set to `true`.**
+- `scroll_speed` - Controls how fast the TUI scrolls when using scroll commands (minimum: `1`). Defaults to `3`. **Note: This is ignored if `scroll_acceleration.enabled` is set to `true`.**
 
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