feat: add hdmi-toggle plugin

[rael2pac]

Plugin

• Id: rael2pac/hdmi-toggle
• New plugin

What it does

Bar widget and panel for listing and toggling connected monitors on and off. Click the bar widget to open a panel with each monitor listed and a toggle button.

External dependencies

• wlr-randr or niri msg for monitor control

Testing

• Tested on Niri
• Tested on Hyprland
• Tested on Sway
• Noctalia version tested against: v5 latest
• Plugin API level: 3

Screenshots / Videos

Checklist

• Directory name matches the part of id after / in plugin.toml exactly.
• Ships plugin.toml, README.md, thumbnail.webp, and translations/en.json.
• README.md follows the README template.
• Created thumbnail.webp with the thumbnail generator. (TODO)
• version follows semver; plugin_api is the oldest API level required.
• Did not edit catalog.toml.
• This PR touches exactly one plugin directory.

Code review attestation

• The code is readable and not obfuscated, minified, or generated.
• It does not download and execute remote code.
• Every network call, filesystem write, and spawned process is accounted for above.
• I have the right to publish this code under the license declared in plugin.toml.

[ItsLemmy]

• 1. blocking - hdmi-toggle/plugin.toml:1

The required dependencies field is absent even though the plugin executes niri. This causes validator failure and leaves the runtime dependency undeclared.

2. blocking - hdmi-toggle/plugin.toml:30

The translation paths contain uppercase characters, and hdmi-toggle/translations/en.json:2 uses dotted root keys instead of nested objects. The validator rejects all three entries.

3. blocking - hdmi-toggle/README.md:28

The plugin advertises wlr-randr, Sway, and Hyprland support, but hdmi-toggle/service.luau:29 and hdmi-toggle/panel.luau:37 only execute niri commands.
Discovery and toggling therefore fail on the other advertised compositors. Implement the fallback or document the plugin as Niri-only.

4. non-blocking - hdmi-toggle/panel.luau:69

Panel fallback text and status labels are Portuguese, while the English translation only contains setting labels. English users will see untranslated Portuguese text.