Improve UX of importing vs. opening files (#3661)

* wip

* fix drag and drop

* fix

* fix tests

* fix tests

* fix warning

* Partial code review

* add dialog

* fix web

* fix web

* push back release candidate expiry

* Code review

* Reduce code duplication for pasting files in frontend

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

desktop/wrapper/src/messages.rs

@@ -79,7 +79,7 @@ pub enum DesktopFrontendMessage {
 pub enum DesktopWrapperMessage {
 	FromWeb(Box<EditorMessage>),
 	Input(InputMessage),
-	OpenFileDialogResult {
+	FileDialogResult {
 		path: PathBuf,
 		content: Vec<u8>,
 		context: OpenFileDialogContext,
@@ -88,10 +88,6 @@ pub enum DesktopWrapperMessage {
 		path: PathBuf,
 		context: SaveFileDialogContext,
 	},
-	OpenDocument {
-		path: PathBuf,
-		content: Vec<u8>,
-	},
 	OpenFile {
 		path: PathBuf,
 		content: Vec<u8>,
@@ -100,14 +96,6 @@ pub enum DesktopWrapperMessage {
 		path: PathBuf,
 		content: Vec<u8>,
 	},
-	ImportSvg {
-		path: PathBuf,
-		content: Vec<u8>,
-	},
-	ImportImage {
-		path: PathBuf,
-		content: Vec<u8>,
-	},
 	PollNodeGraphEvaluation,
 	UpdateMaximized {
 		maximized: bool,
@@ -153,7 +141,7 @@ pub struct FileFilter {
 }
 
 pub enum OpenFileDialogContext {
-	Document,
+	Open,
 	Import,
 }