Optim: use RelativePattern for findFiles linkProvider

The rg command is very slow when searching for files in the whole
workspace. This patch uses RelativePattern to limit the search to the
recipe directory and the files directory.

client/src/documentLinkProvider.ts

@@ -30,13 +30,10 @@ export class BitbakeDocumentLinkProvider implements vscode.DocumentLinkProvider
     const filenames = linksData.map(link => link.value.split(';')[0])
     const filenamesRegex = '{' + filenames.join(',') + '}'
     const parentDir = document.uri.path.split('/').slice(0, -1).join('/')
-    const workspaceFolder = vscode.workspace.getWorkspaceFolder(document.uri)
     const pnDir = path.join(parentDir, extractRecipeName(document.uri.path) as string)
-    const pnDirRelative = pnDir.replace(workspaceFolder?.uri.path + '/', '')
     const filesDir = path.join(parentDir, 'files')
-    const filesDirRelative = filesDir.replace(workspaceFolder?.uri.path + '/', '')
-    return [...(await vscode.workspace.findFiles(pnDirRelative + '/**/' + filenamesRegex, undefined, filenames.length, token)),
-      ...(await vscode.workspace.findFiles(filesDirRelative + '/**/' + filenamesRegex, undefined, filenames.length, token))]
+    return [...(await vscode.workspace.findFiles(new vscode.RelativePattern(pnDir, '**/' + filenamesRegex), undefined, filenames.length, token)),
+      ...(await vscode.workspace.findFiles(new vscode.RelativePattern(filesDir, '**/' + filenamesRegex), undefined, filenames.length, token))]
   }
 
   async provideDocumentLinks (document: vscode.TextDocument, token: vscode.CancellationToken): Promise<vscode.DocumentLink[]> {