Made dictation follow caret instead of appending

[VegardHV]

Description of Change

Dictation results are now inserted into the caret position instead of appending to the end of the text. Selection of text is also accounted for, replacing selected text with dictation, as normal typing would.

Todos

• I have tested on an Android device.
• I have tested on an iOS device.
• I have supported accessibility

[Copilot]

Pull request overview

This PR improves the experimental text-field dictation experience by inserting recognized speech at the current caret position (replacing any active selection), and refactors the dictation UI so the microphone is hosted on/near the keyboard (Android overlay + iOS input accessory) rather than inside individual input components.

Changes:

• Add DictationTextInserter (with unit tests) to insert dictated text at caret/selection, including basic spacing rules and caret updates.
• Introduce a shared dictation session coordinator (DictationSessionCoordinator) and main-thread delivery wrapper to manage a single active session and route streamed results safely.
• Move dictation microphone UI out of MultiLineInputField and into platform keyboard surfaces (Android popup overlay; iOS toolbar accessory), plus a new sample page and localized “Stop dictation” label.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/tests/unittests/Components/TextFields/DictationTextInserterTests.cs	New unit tests covering caret insertion, selection replacement, and clamping behavior.
src/library/DIPS.Mobile.UI/Resources/LocalizedStrings/LocalizedStrings/DUILocalizedStrings.resx	Adds StopDictation localized key (nb).
src/library/DIPS.Mobile.UI/Resources/LocalizedStrings/LocalizedStrings/DUILocalizedStrings.en.resx	Adds StopDictation localized key (en).
src/library/DIPS.Mobile.UI/Resources/LocalizedStrings/LocalizedStrings/DUILocalizedStrings.Designer.cs	Adds generated accessor for StopDictation.
src/library/DIPS.Mobile.UI/Components/TextFields/InputFields/MultiLineInputField/MultiLineInputField.Dictation.cs	Removes prior dictation-in-field implementation.
src/library/DIPS.Mobile.UI/Components/TextFields/InputFields/MultiLineInputField/MultiLineInputField.cs	Removes dictation button wiring and simplifies button visibility; adjusts Save behavior to hide buttons correctly when dirty.
src/library/DIPS.Mobile.UI/Components/TextFields/InputFields/MultiLineInputField/MultiLineInputField.Animations.cs	Removes dictation breathing/border animations tied to the old in-field mic button.
src/library/DIPS.Mobile.UI/Components/TextFields/InputFields/MultiLineInputField/Dictation/IDictationDelegate.cs	Removes old file (interface moved/renamed file).
src/library/DIPS.Mobile.UI/Components/TextFields/InputFields/MultiLineInputField/Dictation/IDictationConsumerDelegate.cs	Reintroduces IDictationConsumerDelegate with XML docs (file rename + doc additions).
src/library/DIPS.Mobile.UI/Components/TextFields/Entry/iOS/MauiDoneAccessoryView.cs	Extends MAUI’s iOS done accessory toolbar with an optional microphone button and active/idle visuals + accessibility labels.
src/library/DIPS.Mobile.UI/Components/TextFields/Entry/iOS/EntryHandler.cs	iOS Entry handler now wires the accessory microphone to start/stop dictation sessions and show errors.
src/library/DIPS.Mobile.UI/Components/TextFields/Entry/EntryHandler.Dictation.cs	Implements dictation result insertion into Entry using DictationTextInserter.
src/library/DIPS.Mobile.UI/Components/TextFields/Entry/Android/EntryHandler.cs	Android Entry handler coordinates focus/blur with the dictation overlay + session coordinator.
src/library/DIPS.Mobile.UI/Components/TextFields/Editor/iOS/EditorHandler.cs	iOS Editor handler now wires the accessory microphone to start/stop dictation sessions and show errors.
src/library/DIPS.Mobile.UI/Components/TextFields/Editor/EditorHandler.Dictation.cs	Implements dictation result insertion into Editor using DictationTextInserter.
src/library/DIPS.Mobile.UI/Components/TextFields/Editor/Android/EditorHandler.cs	Android Editor handler coordinates focus/blur with the dictation overlay + session coordinator.
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/MainThreadDictationConsumer.cs	Ensures dictation results are delivered on the main thread and drops late results after cancellation.
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/DictationTextInserter.cs	New insertion/clamping logic returning updated text + caret index.
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/DictationSessionCoordinator.cs	New coordinator for a single active dictation session, cancellation, and consumer routing.
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/DictationFeature.cs	Centralized “is dictation available” check (experimental feature + delegate configured).
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/DictationErrorDialog.cs	Centralized error dialog display for dictation start failures.
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/Android/DictationKeyboardOverlay.Positioning.cs	Keyboard inset tracking + popup show/hide/reposition logic for the Android overlay mic.
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/Android/DictationKeyboardOverlay.cs	Android overlay lifecycle: attach/detach per activity, subscribe to coordinator, teardown on activity destroyed.
src/library/DIPS.Mobile.UI/Components/TextFields/Dictation/Android/DictationKeyboardOverlay.Button.cs	Android overlay microphone button construction, active/idle icon swap, and session start/stop behavior.
src/app/Components/ComponentsSamples/TextFields/TextFieldsSamples.xaml	Adds navigation entry for the new keyboard dictation sample page and adjusts dividers.
src/app/Components/ComponentsSamples/TextFields/KeyboardDictation/KeyboardDictationSamplePage.xaml.cs	New sample page code-behind.
src/app/Components/ComponentsSamples/TextFields/KeyboardDictation/KeyboardDictationSamplePage.xaml	New sample page demonstrating dictation across Entry/Editor/MultiLineInputField.
CHANGELOG.md	Adds entries for dictation caret insertion + keyboard-hosted microphone, and the MultiLineInputField save/unfocus fix.