refactor: Cleanup (#21)

* refactor(routes): remove unused sitemap route

* style(comments): enforce consistent comment style

* style(exports): enforce consistent export style

* chore: Add jsDoc for contentful service

* chore: Add jsDoc for contentful service \n \n closes #23

* refactor(app): move query parameter comment to right position and mention comment route middleware

* test(npm): add temporary test script

* refactor(middlewares): split up bootstrap middleware - fixes #23759

* refactor(cookies): use constances to give context the maxAge cookie setting

* refactor(variables): use more descriptive names for variables

* space became spaceId when it was just the id not the full space instance
* all (access) token variable name variants became [api-type]Token
* all clients are now called deliveryClient or previewClient
* cpa and cda only remain when they are used as actual API id
* env variables names adjusted

* perf(helpers): only run marked when content is not empty

* refactor(comments): fix typos

* refactor(comments): add hint why error is logged to console in settings

* chore: Add comments to routes and services

* refactor(requires): order and group requires

* fix(settings): add validation for wrong preview token

* chore: Add comments to routes

* chore: fix typo

* chore: console.error -> throw

* chore: move cookie name to a constant

* chore: Fix app.js comment

* typo: removing t

* chore: typos

* chore: removed unnecessary comment line sign

* chore: newline for readabillity

* chore: remove dangling `t`

* chore: remove `t`, add `l`

* chore: typos

* Fleshed out title

* build(npm): remove unused dependencies

* build(npm): upgrade to latest stable contentful sdk

* chore: Addressing David feedbak

* fix(credentials): update to match the new space

* chore: Addressing code review comments

* chore: Addressing code review comments

* chore: res -> response, req-> request

* chore: include exactly what we need

* chore: Address JPs comments

* chore: Address JPs comments

* chore: Address Fredericks comments

* chore: Address Fredericks comments

* fixup! chore: Address Fredericks comments

* fixup! fixup! chore: Address Fredericks comments

* fixup! fixup! fixup! chore: Address Fredericks comments

* fixup! fixup! fixup! fixup! chore: Address Fredericks comments

* fixup! fixup! fixup! fixup! fixup! chore: Address Fredericks comments

* fixup! fixup! fixup! fixup! fixup! fixup! chore: Address Fredericks comments

views/settings.pug

@@ -39,26 +39,26 @@ block content
 
     form(action=`/settings` method="POST" class="form")
       .form-item
-        label(for="input-space") Space ID
-        input(type="text" name="space" id="input-space" value=settings.space)
-        if 'space' in errors
-          +renderErrors(errors.space)
+        label(for="input-space-id") Space ID
+        input(type="text" name="spaceId" id="input-space-id" value=settings.spaceId)
+        if 'spaceId' in errors
+          +renderErrors(errors.spaceId)
         .form-item__help-text The Space ID is a unique identifier for your space.
 
       .form-item
-        label(for="input-cda") Content Delivery API - access token
-        input(type="text" name="cda" id="input-cda" value=settings.cda)
-        if 'cda' in errors
-          +renderErrors(errors.cda)
+        label(for="input-delivery-token") Content Delivery API - access token
+        input(type="text" name="deliveryToken" id="input-delivery-token" value=settings.deliveryToken)
+        if 'deliveryToken' in errors
+          +renderErrors(errors.deliveryToken)
         .form-item__help-text
           | View published content using this API. 
           a(href='https://www.contentful.com/developers/docs/references/content-delivery-api/' target='_blank' rel='noopener') Content Delivery API.
 
       .form-item
-        label(for="input-cpa") Content Preview API - access token
-        input(type="text" name="cpa" id="input-cpa" value=settings.cpa)
-        if 'cpa' in errors
-          +renderErrors(errors.cpa)
+        label(for="input-preview-token") Content Preview API - access token
+        input(type="text" name="previewToken" id="input-preview-token" value=settings.previewToken)
+        if 'previewToken' in errors
+          +renderErrors(errors.previewToken)
         .form-item__help-text
           | Preview unpublished content using this API (i.e. content with “Draft” status). 
           a(href='https://www.contentful.com/developers/docs/references/content-preview-api/' target='_blank' rel='noopener') Content Preview API.