fix(amazonq): skip indexing when no workspace folders are found

[jpinkney-aws]

Problem

If customers open a workspace without a workspace folder they get:

2024-11-19 10:49:16.189 [error] Error: No workspace folders found
	at k (/Users/myuser/.vscode/extensions/amazonwebservices.amazon-q-vscode-99.0.0-g3afd54d/dist/src/extensionNode.js:5464:5562)
	at L.buildIndex (/Users/myuser/.vscode/extensions/amazonwebservices.amazon-q-vscode-99.0.0-g3afd54d/dist/src/extensionNode.js:5464:9890)
	at Immediate.<anonymous> (/Users/myuser/.vscode/extensions/amazonwebservices.amazon-q-vscode-99.0.0-g3afd54d/dist/src/extensionNode.js:5464:11854)

because workspace indexing is throwing an error

Solution

Log that no workspace folders were found so indexing is skipped

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License: I confirm that my contribution is made under the terms of the Apache 2.0 license.