keyboard: Connect special characters dialogs to cosmic-config settings

Cargo.lock

@@ -793,6 +793,7 @@ dependencies = [
  "i18n-embed",
  "i18n-embed-fl",
  "image",
+ "itertools 0.11.0",
  "libcosmic",
  "log",
  "notify",
@@ -2208,7 +2209,7 @@ dependencies = [
  "iced_graphics",
  "iced_runtime",
  "iced_style",
- "itertools",
+ "itertools 0.10.5",
  "raw-window-handle 0.5.2",
  "smithay-client-toolkit 0.17.0",
  "smithay-clipboard",
@@ -2506,6 +2507,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1c173a5686ce8bfa551b3563d0c2170bf24ca44da99c7ca4bfdab5418c3fe57"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "jni-sys"
 version = "0.3.0"