feat(hassio): Implemented the Home Assistant plugin for Noctalia v5. (#31)

* feat(hassio): Implemented the Home Assistant plugin for Noctalia v5.

* Update plugin.toml

* Update plugin.toml

* fix(*): Changed curl HTTP calls to native noctalia HTTP calls.

* fix(*): Fixed headers on HTTP requests.

* fix(service_sse): Fixed HA tokens visible on argv during streams.

* fix(service_sse): Added an explicit exit signal for the stream and
refresh/reload_entities no longer force `sseActive = false`.

* fix(*): Fixed xdg-open missing from README.md and plugin.toml

* refact(widget): Changed runInTerminal to runAsync on xdg-open calls to
prevent the termial from popping up.

* fix(*): Changed plugin data location to be stored where pluginDataDir()
points.

* fix(README): Added all IPC calls to README.

* Updated README to reflect recent changes.

* refact(*): Removed some dead code.

* fix(*): Changed toggle timeout logic to use real time, fixing toggles
being stuck in a loding animation.

* refact(*): Added a token cleaner function.

* refact(service_sse): Changed curl stream calls for the new native HTTP
streaming API.

* feat(*): Fixed some translations.

hassio/shortcut_panel.luau

@@ -0,0 +1,10 @@
+--!nonstrict
+
+shortcut.setLabel(noctalia.tr("shortcut.panel_label"))
+shortcut.setIcon("layout-list")
+shortcut.setActive(false)
+shortcut.setEnabled(true)
+
+function onClick()
+    noctalia.togglePanel("pozzoo/hassio:entity_manager")
+end