Set messages tab active if there is a query execution error

[cssuh]

Before: When you run SELECT 1/0, the empty results pane is shown, instead of the messages tab with the divide by zero error

After: We show the messages tab by default if there is an error with the query execution.

(also sets view to messages tab if the user cancels the query)

Fixes #18702
Fixes #18923

[github-actions]

PR Changes

Category	Main Branch	PR Branch	Difference
Code Coverage	51.06%	51.19%	$${\color{lightgreen} .13\% }$$
VSIX Size	12990 KB	12990 KB	$${\color{lightgreen} 0 KB \space (0\%) }$$
Webview Bundle Size	3196 KB	3196 KB	$${\color{lightgreen} 0 KB \space (0\%) }$$