add support for overwriting existing card (#859)

* frontend

* wip

* minimum viable

* minor simplification

* simplify gradients in duplicate svg

* simplify add-duplicate svg

* colors good

* arrows shape

* disable overwrite if no valid duplicate IDs

* add warning

4 files changed, 12 insertions, 1 deletions

diff --git a/types/ext/anki.d.ts b/types/ext/anki.d.ts
index 4a903c52..8ad0890f 100644
--- a/types/ext/anki.d.ts
+++ b/types/ext/anki.d.ts
@@ -22,6 +22,8 @@ export type NoteId = number;
 
 export type CardId = number;
 
+export type NoteWithId = Note & {id: NoteId};
+
 export type Note = {
     fields: NoteFields;
     tags: string[];
diff --git a/types/ext/api.d.ts b/types/ext/api.d.ts
index 9a922fb0..3a2fc0b8 100644
--- a/types/ext/api.d.ts
+++ b/types/ext/api.d.ts
@@ -169,6 +169,12 @@ type ApiSurface = {
         };
         return: Anki.NoteId | null;
     };
+    updateAnkiNote: {
+        params: {
+            noteWithId: Anki.NoteWithId;
+        };
+        return: null;
+    };
     getAnkiNoteInfo: {
         params: {
             notes: Anki.Note[];
diff --git a/types/ext/display-anki.d.ts b/types/ext/display-anki.d.ts
index 1b0dd4ff..4b6c6e37 100644
--- a/types/ext/display-anki.d.ts
+++ b/types/ext/display-anki.d.ts
@@ -46,6 +46,9 @@ export type DictionaryEntryModeDetails = {
     requirements: AnkiNoteBuilder.Requirement[];
     canAdd: boolean;
     valid: boolean;
+    /**
+     * Anki IDs of duplicate notes. May contain INVALID_NOTE_ID for notes whose ID could not be found.
+     */
     noteIds: Anki.NoteId[] | null;
     noteInfos?: (Anki.NoteInfo | null)[];
     ankiError: Error | null;
diff --git a/types/ext/settings.d.ts b/types/ext/settings.d.ts
index 1fce0f59..48a66728 100644
--- a/types/ext/settings.d.ts
+++ b/types/ext/settings.d.ts
@@ -395,7 +395,7 @@ export type AnkiScreenshotFormat = 'png' | 'jpeg';
 
 export type AnkiDuplicateScope = 'collection' | 'deck' | 'deck-root';
 
-export type AnkiDuplicateBehavior = 'prevent' | 'new';
+export type AnkiDuplicateBehavior = 'prevent' | 'overwrite' | 'new';
 
 export type AnkiDisplayTags = 'never' | 'always' | 'non-standard';