track notebook for auto-edits (#6449)

The PR adds the support for the notebook in the `auto-edits`.
1. By default each cell is treated as a separate document, hence we get
limited context for the current file. We add the content for the full
file.
2. All the context sources used to ignore the notebooks. Now, all
following the context sources tracks the support for notebooks and
context is persisted between `py` and `ipynb`:
 - Recent Edits
 - Diagnostics
 - Recent View Port 

## Test plan
existing CI and Manual testing to check behaviour in case of notebook

---------

Co-authored-by: Valery Bugakov <[email protected]>

lib/shared/src/completions/types.ts

@@ -16,11 +16,10 @@ interface AutocompleteContextSnippetMetadata {
     retrieverMetadata?: AutocompleteContextSnippetMetadataFields
 }
 
-export interface AutocompleteFileContextSnippet {
+export interface AutocompleteBaseContextSnippet {
+    type: 'base'
     identifier: string
     uri: URI
-    startLine: number
-    endLine: number
     content: string
     /**
      * Metadata populated by the context retriever.
@@ -30,12 +29,21 @@ export interface AutocompleteFileContextSnippet {
     metadata?: AutocompleteContextSnippetMetadata
 }
 
-export interface AutocompleteSymbolContextSnippet extends AutocompleteFileContextSnippet {
+export interface AutocompleteFileContextSnippet extends Omit<AutocompleteBaseContextSnippet, 'type'> {
+    type: 'file'
+    startLine: number
+    endLine: number
+}
+
+export interface AutocompleteSymbolContextSnippet extends Omit<AutocompleteFileContextSnippet, 'type'> {
+    type: 'symbol'
     symbol: string
 }
+
 export type AutocompleteContextSnippet =
     | AutocompleteFileContextSnippet
     | AutocompleteSymbolContextSnippet
+    | AutocompleteBaseContextSnippet
 
 export interface DocumentContext extends DocumentDependentContext, LinesContext {
     position: vscode.Position

vscode/src/autoedits/prompt/default-prompt-strategy.test.ts

@@ -17,6 +17,7 @@ describe('DefaultUserPromptStrategy', () => {
         identifier: string,
         filePath = 'foo.ts'
     ): AutocompleteContextSnippet => ({
+        type: 'file',
         content,
         identifier,
         uri: testFileUri(filePath),