refactor(websocket-plugin): get rid off rxjs/webSocket and use WebSocket directly

[arturovt]

This commit updated the WebSocket handler implementation and switched to
using the native WebSocket directly, instead of relying on rxjs/webSocket.
The RxJS WebSocket implementation can be cumbersome when it comes to handling
socket events and lacks simplicity. By handling socket events manually, we avoid
the need to use the RxJS implementation.

[bundlemon]

BundleMon

Unchanged files (3)

Status	Path	Size	Limits
✅	fesm2015/ngxs-store.js	94.14KB	125KB / +0.5%
✅	fesm2015/ngxs-store-operators.js	6.23KB	15KB / +0.5%
✅	fesm2015/ngxs-store-internals.js	3.57KB	20KB / +0.5%

No change in files bundle size

Unchanged groups (3)

Status	Path	Size	Limits
✅	@ngxs/store(esm2015)[gzip] ./esm2015/**/*.js	179.87KB	+1%
✅	@ngxs/store(umd)[gzip] ./bundles/*.umd.js	36.45KB	+1%
✅	@ngxs/store(fesm2015)[gzip] ./fesm2015/*.js	24.95KB	+1%

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[bundlemon]

BundleMon (NGXS Plugins)

Files updated (2)

Status	Path	Size	Limits
❌	Plugins(fesm2015)[gzip] websocket-plugin/fesm2015/ngxs-websocket-plug in.js	2.64KB (+123B +4.77%)	+1%
❌	Plugins(umd)[gzip] websocket-plugin/bundles/ngxs-websocket-plugi n.umd.js	6.91KB (+119B +1.71%)	+1%

Unchanged files (14)

Status	Path	Size	Limits
✅	Plugins(umd)[gzip] storage-plugin/bundles/ngxs-storage-plugin.um d.js	7.97KB	+1%
✅	Plugins(umd)[gzip] router-plugin/bundles/ngxs-router-plugin.umd. js	7.19KB	+1%
✅	Plugins(umd)[gzip] hmr-plugin/bundles/ngxs-hmr-plugin.umd.js	6.89KB	+1%
✅	Plugins(fesm2015)[gzip] storage-plugin/fesm2015/ngxs-storage-plugin.j s	3.7KB	+1%
✅	Plugins(umd)[gzip] form-plugin/bundles/ngxs-form-plugin.umd.js	3.29KB	+1%
✅	Plugins(fesm2015)[gzip] router-plugin/fesm2015/ngxs-router-plugin.js	2.92KB	+1%
✅	Plugins(umd)[gzip] devtools-plugin/bundles/ngxs-devtools-plugin. umd.js	2.75KB	+1%
✅	Plugins(fesm2015)[gzip] hmr-plugin/fesm2015/ngxs-hmr-plugin.js	2.65KB	+1%
✅	Plugins(fesm2015)[gzip] form-plugin/fesm2015/ngxs-form-plugin.js	2.57KB	+1%
✅	Plugins(umd)[gzip] logger-plugin/bundles/ngxs-logger-plugin.umd. js	2.53KB	+1%
✅	Plugins(fesm2015)[gzip] devtools-plugin/fesm2015/ngxs-devtools-plugin .js	2.17KB	+1%
✅	Plugins(fesm2015)[gzip] logger-plugin/fesm2015/ngxs-logger-plugin.js	2.01KB	+1%
✅	Plugins(umd)[gzip] router-plugin/bundles/ngxs-router-plugin-inte rnals.umd.js	654B	+1%
✅	Plugins(fesm2015)[gzip] router-plugin/fesm2015/ngxs-router-plugin-int ernals.js	406B	+1%

Total files change +242B +0.41%

Groups updated (3)

Status	Path	Size	Limits
✅	All Plugins(esm2015)[gzip] ./-plugin/esm2015/**/.js	109.82KB (+780B +0.7%)	+1%
✅	All Plugins(fesm2015)[gzip] ./-plugin/fesm2015/.js	19.05KB (+123B +0.63%)	+1%
✅	All Plugins(umd)[gzip] ./-plugin/bundles/.umd.js	38.17KB (+119B +0.31%)	+1%

Final result: ❌

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[bundlemon]

BundleMon (Integration Projects)

Files updated (1)

Status	Path	Size	Limits
✅	Main bundles(Gzip) hello-world-ng15/dist-integration/main.(hash) .js	63.38KB (-578B -0.88%)	+1%

Total files change -578B -0.88%

Final result: ✅

View report in BundleMon website ➡️

---

Current branch size history | Target branch size history

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[markwhitfeld]

We need to make sure that we test and handle correctly the scenario where the connect method is called after the service is destroyed.

[markwhitfeld]

I would still prefer to have the _destroy$ changed to a ReplaySubject just so that we are consistent with a recommended practice. But I'll leave it up to you on what you do.
Also, can you resolve the conflicts with master?
I tried, but saw that it was reintroducing the initialiser code that you removed. Best that you do it 👍

[codeclimate]

Code Climate has analyzed commit 8fa8bf7 and detected 2 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Duplication	2

The test coverage on the diff in this pull request is 86.4% (50% is the threshold).

This pull request will bring the total coverage in the repository to 95.5% (0.0% change).

View more on Code Climate.