fix: add check for template store to conditional

[tivac]

Fixes #1828

This adds to the check introduced in #1811 so that it also handles components that set their own store via a function. Previously the check only looked for a passed-in store from options.

Svelte tests have traditionally been very cranky on my machine, presumably due to being on Windows, but I'm working to try and update some tests and add at least one test to check this functionality.

[Conduitry]

I think I'd prefer putting the && !templateProperties.store check in the compiler code that decides whether to output this bit of code, rather than in the client code.

[tivac]

@Conduitry Fair, updated with a test and logic moved into the compiler!