New API docummentation. (#544)

* Install hljs package.

* Add highlight.js stylesheet and js to index.html.

* Add new instructions for API documentation.

* Add network value to code-template component.

* Add curl examples.

* Fix tab order of bisq api page.

* Add esmodules instalation instructions.
Add external links to repositories.

* Add self-hosted hljs styles.

* Add response code examples.
Add dynamic networks to curl examples.
Remove reponse code box if not needed.

* Self hosted highlight.min.js.

* Bumping "ws" dependency to fix vulnerability.

* npm audit fix

* npm audit fix

* Remove Hightlight.js dependency.
Add new style to code-template-component.

* Remove hljs css.

* Change NgbModule and NgbAccordionModule  to shared

* Fix NgbAccordionModule import.

frontend/package-lock.json

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-      "peer": true,
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@@ -5050,7 +5049,6 @@
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@@ -24159,6 +24157,8 @@
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       "dev": true,
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+        "@angular/core": "9.0.0",
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@@ -24174,17 +24174,17 @@
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-          "version": "https://registry.npmjs.org/@angular/compiler/-/compiler-9.0.0.tgz",
+          "version": "9.0.0",
+          "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-9.0.0.tgz",
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-          "peer": true,
           "requires": {}
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         "@angular/core": {
-          "version": "https://registry.npmjs.org/@angular/core/-/core-9.0.0.tgz",
+          "version": "9.0.0",
+          "resolved": "https://registry.npmjs.org/@angular/core/-/core-9.0.0.tgz",
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