feat: add optional on-screen toggle button for WireSpy panel

[JonBarakMierke]

What this does

Adds an optional on-screen toggle button to open/close the WireSpy debug panel.

Why

Keyboard shortcuts can conflict with OS/browser shortcuts, making the panel
inaccessible for some users.

How

Reuses existing toggle logic

@wire-spy-toggle.window="show = !show"

Button is optional via config

• No behavior changes by default

<?php

return [
    /*
     * Enable or disable WireSpy.
     * By default, WireSpy will only be enabled in your development environment.
     */
    'enabled' => env('WIRE_SPY_ENABLED'),

    /**
     * The keybinding configuration option allows you to define a keyboard shortcut
     * using AlpineJS syntax. It accepts a string representing the desired key combination.
     *
     * Syntax:
     * - 'super' corresponds to the 'Cmd' key on macOS and the 'Ctrl' key on Windows/Linux.
     * - Combine with other keys using dot notation, like 'super.l' for 'Cmd+L' or 'Ctrl+L'.
     */
    'keybinding' => 'super.l',


    /**
     * By default WireSpy can only be triggered by keyboard shortcuts.
     * If you need to trigger the panel's visibility by a button either set the WIRE_SPY_BUTTON_ENABLED to true
     * in your .env file or publish the config file and set the value to true.
     */
    'button_enabled' => env('WIRE_SPY_BUTTON_ENABLED', false),
];

Added trigger.blade.php

• Button styling is basic. It could definitely use some work.

<button
    x-data
    @click="$dispatch('wire-spy-toggle')"
    style="
        position: fixed;
        bottom: 16px;
        right: 16px;
        z-index: 99999999;

        display: flex;
        align-items: center;
        justify-content: center;

        width: 40px;
        height: 40px;

        border-radius: 9999px;
        background: #18181b;
        color: #e5e7eb;

        font-size: 18px;
        line-height: 1;

        cursor: pointer;
        box-shadow: 0 4px 12px rgba(0,0,0,.4);
    "
    title="Toggle WireSpy"
>
    🐞
</button>

Screenshots

Works globally.

(The entire reason I did this is that I needed to be able to trigger it while building a Filament panel).