core, ui: markdown for hyperlinks, warn on unsanitized links, option to sanitize sent links (#6160)

* core: markdown for "hidden" links

* update, test

* api docs

* chatParseUri FFI function

* ios: hyperlinks, offer to open sanitized links, an option to send sanitized links (enabled by default)

* update markdown

* android, desktop: ditto

* ios: export localizations

* core: rename constructor, change Maybe semantics for web links

* rename

apps/ios/Shared/Views/UserSettings/DeveloperView.swift

@@ -14,6 +14,7 @@ struct DeveloperView: View {
     @AppStorage(DEFAULT_DEVELOPER_TOOLS) private var developerTools = false
     @AppStorage(GROUP_DEFAULT_CONFIRM_DB_UPGRADES, store: groupDefaults) private var confirmDatabaseUpgrades = false
     @State private var hintsUnchanged = hintDefaultsUnchanged()
+    @State private var simplexLinkMode = privacySimplexLinkModeDefault.get()
 
     @Environment(\.colorScheme) var colorScheme
 
@@ -65,6 +66,21 @@ struct DeveloperView: View {
                         Text("Developer options")
                     }
                 }
+                Section("Deprecated options") {
+                    settingsRow("link", color: theme.colors.secondary) {
+                        Picker("SimpleX links", selection: $simplexLinkMode) {
+                            ForEach(
+                                SimpleXLinkMode.values + (SimpleXLinkMode.values.contains(simplexLinkMode) ? [] : [simplexLinkMode])
+                            ) { mode in
+                                Text(mode.text)
+                            }
+                        }
+                    }
+                    .frame(height: 36)
+                    .onChange(of: simplexLinkMode) { mode in
+                        privacySimplexLinkModeDefault.set(mode)
+                    }
+                }
             }
         }
     }