feat(ui): enable multiple keyboard layouts for "paste text" to remote host (#405)

* Enable multiple keyboard layouts for paste text from host

* Trema is the more robust method for capital umlauts

* Improve error handling and pre-loading

* Improve accent handling

* Remove obscure Alt-Gr keys, unsure if they are supported everywhere

* Add Swiss French

* Change line ordering

* Fix whitespace

* Add French (France)

* Add English (UK)

* Add Swedish

* Add Spanish

* Fix fr_FR special characters

* Add more keys to Spanish

* Remove default value shift: false

* Add Norwegian

* Operator precedence 🤦

* Add Italian

* Add Czech

* Move guard statements outside of loop

* Move language name definitions into the keyboard layout files

* Change the locale names to their native language

German->Deutsch et. al.

* Move hold key handling into Go backend analogous to https://www.kernel.org/doc/Documentation/usb/gadget_hid.txt

* Remove trailing whitespace

* Fix

* Add Belgisch Nederlands

* Add JSONRPC handling

* Use useSettingsStore

* Revert "Move hold key handling into Go backend analogous to https://www.kernel.org/doc/Documentation/usb/gadget_hid.txt"

This reverts commit 146cee9309ca7a8b7ab103e955f3fcc38a4bc692.

* Move FeatureFlag to navigation

* Fix: flip Y/Z

* Add useEffect dependencies

* Embolden language

* Add to useCallback dependencies

---------

Co-authored-by: Marc Brooks <IDisposable@gmail.com>

config.go

@@ -87,6 +87,7 @@ type Config struct {
 	LocalAuthMode        string                 `json:"localAuthMode"` //TODO: fix it with migration
 	WakeOnLanDevices     []WakeOnLanDevice      `json:"wake_on_lan_devices"`
 	KeyboardMacros       []KeyboardMacro        `json:"keyboard_macros"`
+	KeyboardLayout       string                 `json:"keyboard_layout"`
 	EdidString           string                 `json:"hdmi_edid_string"`
 	ActiveExtension      string                 `json:"active_extension"`
 	DisplayRotation      string                 `json:"display_rotation"`
@@ -109,6 +110,7 @@ var defaultConfig = &Config{
 	ActiveExtension:      "",
 	KeyboardMacros:       []KeyboardMacro{},
 	DisplayRotation:      "270",
+	KeyboardLayout:       "en-US",
 	DisplayMaxBrightness: 64,
 	DisplayDimAfterSec:   120,  // 2 minutes
 	DisplayOffAfterSec:   1800, // 30 minutes