Spinner title has no space before it for non-Dots spinner types

Describe the bug When the spinner uses any type other than Dots, there is no space between the spinner glyph and the title. The title is printed right after the glyph, for example |Loading instead of | Loading.

The default Dots type looks correct only by accident: each of its frames already ends with a space. The other types do not end with a space, so the title sticks to the glyph. This affects Line, MiniDot, Jump, Pulse, Points, Globe, Moon, Monkey, Meter, Hamburger, and Ellipsis.

The cause is in Spinner.View(), which joins the glyph and the title with no separator:

func (s *Spinner) View() string {
    styles := s.theme.Theme(s.hasDarkBg)
    s.spinner.Style = styles.Spinner
    var title string
    if s.title != "" {
        title = styles.Title.Render(s.title)
    }
    return s.spinner.View() + title
}

So the spacing depends on whether the frame string ends with a space, which is not true for most types.

Setup

• OS: NixOS (Linux 6.18.33)
• Shell: zsh 5.9
• Terminal Emulator: Ghostty
• Terminal Multiplexer: none
• Locale: en_US.UTF-8
• huh version: v2.0.3
• Go version: 1.26.3

To Reproduce Steps to reproduce the behavior:

1. Create a spinner with a non-default type, for example spinner.Line.
2. Set a title, for example "Loading".
3. Run it in a real terminal.
4. See the title printed with no space after the glyph, like |Loading.

Source Code

package main

import (
    "time"

    "charm.land/huh/v2/spinner"
)

func main() {
    // Try spinner.Line (no trailing space in its frames).
    // The output looks like "|Loading", "/Loading", and so on.
    _ = spinner.New().
        Title("Loading").
        Type(spinner.Line).
        Action(func() { time.Sleep(2 * time.Second) }).
        Run()

    // With spinner.Dots the output looks fine ("dots Loading")
    // only because the Dots frames end with a space.
}

Expected behavior There should be a single space between the spinner glyph and the title for every spinner type, the same as the default Dots type. For example, Line should render | Loading, not |Loading.

Screenshots I can add a screenshot if needed.

Additional context I found this while building a CLI on top of huh. A safe fix is to add one space between the glyph and the title only when the glyph does not already end with whitespace, so the Dots type does not get a double space.

I am interested in fixing this. If the approach above sounds good to you, I am happy to open a pull request with a test that checks the spacing for a non-Dots type such as Line.