Fix typos in comments and error messages

src/vs/editor/contrib/message/browser/messageController.ts

@@ -107,7 +107,7 @@ export class MessageController implements IEditorContribution {
 			}
 
 			if (!bounds) {
-				// define bounding box around position and first mouse occurance
+				// define bounding box around position and first mouse occurrence
 				bounds = new Range(position.lineNumber - 3, 1, e.target.position.lineNumber + 3, 1);
 			} else if (!bounds.containsPosition(e.target.position)) {
 				// check if position is still in bounds

src/vs/workbench/api/common/extHostNotebook.ts

@@ -405,7 +405,7 @@ export class ExtHostNotebookController implements ExtHostNotebookShape {
 	 *
 	 * @param handle used to get notebook serializer
 	 * @param textQuery the text query to search using
-	 * @param viewTypeFileTargets the globs (and associated ranks) that are targetting for opening this type of notebook
+	 * @param viewTypeFileTargets the globs (and associated ranks) that are targeting for opening this type of notebook
 	 * @param otherViewTypeFileTargets ranked globs for other editors that we should consider when deciding whether it will open as this notebook
 	 * @param token cancellation token
 	 * @returns `IRawClosedNotebookFileMatch` for every file. Files without matches will just have a `IRawClosedNotebookFileMatch`

src/vs/workbench/contrib/debug/browser/variablesView.ts

@@ -151,7 +151,7 @@ export class VariablesView extends ViewPane implements IDebugViewWithVariables {
 				return;
 			}
 
-			// Refresh the tree immediately if the user explictly changed stack frames.
+			// Refresh the tree immediately if the user explicitly changed stack frames.
 			// Otherwise postpone the refresh until user stops stepping.
 			const timeout = sf.explicit ? 0 : undefined;
 			this.updateTreeScheduler.schedule(timeout);

src/vs/workbench/contrib/files/browser/views/explorerViewer.ts

@@ -1686,7 +1686,7 @@ export class FileDragAndDrop implements ITreeDragAndDrop<ExplorerItem> {
 
 			if (items.some((source) => {
 				if (source.isRoot) {
-					return false; // Root folders are handled seperately
+					return false; // Root folders are handled separately
 				}
 
 				if (this.uriIdentityService.extUri.isEqual(source.resource, target.resource)) {

src/vs/workbench/contrib/notebook/browser/diff/notebookDiffEditor.ts

@@ -937,7 +937,7 @@ export class NotebookTextDiffEditor extends EditorPane implements INotebookTextD
 
 	getLayoutInfo(): NotebookLayoutInfo {
 		if (!this._list) {
-			throw new Error('Editor is not initalized successfully');
+			throw new Error('Editor is not initialized successfully');
 		}
 
 		return {

src/vs/workbench/contrib/notebook/browser/notebookEditorWidget.ts

@@ -2756,7 +2756,7 @@ export class NotebookEditorWidget extends Disposable implements INotebookEditorD
 
 	getLayoutInfo(): NotebookLayoutInfo {
 		if (!this._list) {
-			throw new Error('Editor is not initalized successfully');
+			throw new Error('Editor is not initialized successfully');
 		}
 
 		if (!this._fontInfo) {