fix: Improve readability of "enable this API" messages

[kevmoo]

Fixes #10366

The existing bits get easily buried in the output. Make it super easy for the user to discover.

If cloud changes this text, the backup behavior is not catastrophic, either.

[gemini-code-assist]

Code Review

This pull request modifies src/responseToError.ts to improve the readability of error messages by inserting double newlines before specific phrases related to API enablement. The review feedback suggests using a single global regular expression instead of multiple string-based replacements to ensure all occurrences are handled and to simplify the code logic.

[gemini-code-assist]

The current implementation using String.prototype.replace() with a string literal only replaces the first occurrence of the target text. While it is unlikely that these specific phrases appear multiple times in a single error message, using a global regular expression is more robust and ensures all occurrences are formatted as intended. Additionally, using a single regex with a capture group simplifies the logic and handles both phrases in one pass.

Suggested change

	errorMessage = errorMessage.replace("Enable it by visiting", "\n\nEnable it by visiting");
	errorMessage = errorMessage.replace(
	"If you enabled this API recently",
	"\n\nIf you enabled this API recently",
	);
	errorMessage = errorMessage.replace(/(Enable it by visiting|If you enabled this API recently)/g, "\n\n$1");