tests(svelte-query): Reorganise for multiple components per test

[lachlancollins]

Compared to the react-query tests, it's not quite as straightforward to write svelte-query tests, as they can't be included as functions within the test definition, but need to be separate file components.

This PR refactors each source file's tests to be a folder, making it easier to add multiple components per test (rather than trying to conform a single component to poorly suit multiple tests).

As a demo, I've added new tests for useIsFetching and QueryClientProvider, and an additional test for createQuery

I'm hoping this structure will make it easier to add more tests going forward!

Coverage is up from 69.42% to 80.99%

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1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
query	⬜️ Ignored (Inspect)			Jul 1, 2024 0:05am

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To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 6d6a378:

Sandbox	Source
@tanstack/query-example-angular-basic	Configuration
@tanstack/query-example-react-basic-typescript	Configuration
@tanstack/query-example-solid-basic-typescript	Configuration
@tanstack/query-example-svelte-basic	Configuration
@tanstack/query-example-vue-basic	Configuration

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.86%. Comparing base (56fad10) to head (6d6a378).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #7654       +/-   ##
===========================================
+ Coverage   44.08%   80.86%   +36.77%     
===========================================
  Files         185       18      -167     
  Lines        7054      162     -6892     
  Branches     1553       32     -1521     
===========================================
- Hits         3110      131     -2979     
+ Misses       3578       27     -3551     
+ Partials      366        4      -362     

Components	Coverage Δ
@tanstack/angular-query-devtools-experimental	∅ <ø> (∅)
@tanstack/angular-query-experimental	∅ <ø> (∅)
@tanstack/eslint-plugin-query	∅ <ø> (∅)
@tanstack/query-async-storage-persister	∅ <ø> (∅)
@tanstack/query-broadcast-client-experimental	∅ <ø> (∅)
@tanstack/query-codemods	∅ <ø> (∅)
@tanstack/query-core	∅ <ø> (∅)
@tanstack/query-devtools	∅ <ø> (∅)
@tanstack/query-persist-client-core	∅ <ø> (∅)
@tanstack/query-sync-storage-persister	∅ <ø> (∅)
@tanstack/react-query	∅ <ø> (∅)
@tanstack/react-query-devtools	∅ <ø> (∅)
@tanstack/react-query-next-experimental	∅ <ø> (∅)
@tanstack/react-query-persist-client	∅ <ø> (∅)
@tanstack/solid-query	∅ <ø> (∅)
@tanstack/solid-query-devtools	∅ <ø> (∅)
@tanstack/solid-query-persist-client	∅ <ø> (∅)
@tanstack/svelte-query	79.33% <ø> (+10.66%)	⬆️
@tanstack/svelte-query-devtools	∅ <ø> (∅)
@tanstack/svelte-query-persist-client	100.00% <ø> (ø)
@tanstack/vue-query	∅ <ø> (∅)
@tanstack/vue-query-devtools	∅ <ø> (∅)