Bug fixes plus extra features

- Insert adds a new keyframe to the selected timeline
- New stages have frames cloned from the last frame of current stage
- Existing key are now replaced when another key is dropped on them
- Fixed bug where starting a new animation could result in errors

Library/PlayerDataCache/Win/ScriptsOnlyCache.yaml

@@ -434,7 +434,7 @@ ScriptsOnlyBuild:
     className: LayoutElement
   - hash:
       serializedVersion: 2
-      Hash: c06ff38c3845b69f6896174b5e32d893
+      Hash: 9907da2c637bf7bac057bc252a290438
     assemblyName: Assembly-CSharp.dll
     namespaceName: RimWorldAnimationStudio
     className: Tooltip
@@ -624,12 +624,6 @@ ScriptsOnlyBuild:
     assemblyName: Unity.TextMeshPro.dll
     namespaceName: TMPro
     className: TextContainer
-  - hash:
-      serializedVersion: 2
-      Hash: 71bb6a6b6c8f052f948db64c7dd3ca4f
-    assemblyName: Assembly-CSharp.dll
-    namespaceName: RimWorldAnimationStudio
-    className: KeybindConfig
   - hash:
       serializedVersion: 2
       Hash: f84d945e5e1ca985698660fc26e9657f
@@ -764,7 +758,7 @@ ScriptsOnlyBuild:
     className: TimelineAsset
   - hash:
       serializedVersion: 2
-      Hash: f95ed8cfd6182d3eaa9c95ac414e8aa9
+      Hash: 5daa9734cff36c5842eb8ce89d4c9aa9
     assemblyName: Assembly-CSharp.dll
     namespaceName: RimWorldAnimationStudio
     className: Workspace