UI updates (#151)

* infer card title

* Infer entry body & image

* infer image

* Better terminology: EntryListing accept a single Collection

* remove log

* Refactored Collections VO into selectors

* use selectors when showning card

* fixed size cards

* Added 'bio' and 'biography' to collection description inference synonyms

* Removed unused card file

* throw error instance

* bugfix for file based collections

* lint

* moved components with css to own folder

* Search Bugfix: More than one collection might be returned

* Changed sidebar implementation. Closes #104 & #152

* Show spinning loading for unpublished entries

* Refactored Sidebar into a separate container

* Make preview widgets more robust

src/valueObjects/Collection.js

@@ -1,121 +0,0 @@
-import { FOLDER, FILES } from '../constants/collectionTypes';
-
-function formatToExtension(format) {
-  return {
-    markdown: 'md',
-    yaml: 'yml',
-    json: 'json',
-    html: 'html',
-  }[format];
-}
-
-class FolderCollection {
-  constructor(collection) {
-    this.collection = collection;
-  }
-
-  entryFields() {
-    return this.collection.get('fields');
-  }
-
-  entryPath(slug) {
-    return `${ this.collection.get('folder') }/${ slug }.${ this.entryExtension() }`;
-  }
-
-  entrySlug(path) {
-    return path.split('/').pop().replace(/\.[^\.]+$/, '');
-  }
-
-  listMethod() {
-    return 'entriesByFolder';
-  }
-
-  entryExtension() {
-    return this.collection.get('extension') || formatToExtension(this.collection.get('format') || 'markdown');
-  }
-
-  allowNewEntries() {
-    return this.collection.get('create');
-  }
-
-  templateName() {
-    return this.collection.get('name');
-  }
-}
-
-class FilesCollection {
-  constructor(collection) {
-    this.collection = collection;
-  }
-
-  entryFields(slug) {
-    const file = this.fileForEntry(slug);
-    return file && file.get('fields');
-  }
-
-  entryPath(slug) {
-    const file = this.fileForEntry(slug);
-    return file && file.get('file');
-  }
-
-  entrySlug(path) {
-    const file = this.collection.get('files').filter(f => f.get('file') === path).get(0);
-    return file && file.get('name');
-  }
-
-  fileForEntry(slug) {
-    const files = this.collection.get('files');
-    return files.filter(f => f.get('name') === slug).get(0);
-  }
-
-  listMethod() {
-    return 'entriesByFiles';
-  }
-
-  allowNewEntries() {
-    return false;
-  }
-
-  templateName(slug) {
-    return slug;
-  }
-}
-
-export default class Collection {
-  constructor(collection) {
-    switch (collection.get('type')) {
-      case FOLDER:
-        this.collection = new FolderCollection(collection);
-        break;
-      case FILES:
-        this.collection = new FilesCollection(collection);
-        break;
-      default:
-        throw ('Unknown collection type: %o', collection.get('type'));
-    }
-  }
-
-  entryFields(slug) {
-    return this.collection.entryFields(slug);
-  }
-
-  entryPath(slug) {
-    return this.collection.entryPath(slug);
-  }
-
-  entrySlug(path) {
-    return this.collection.entrySlug(path);
-  }
-
-  listMethod() {
-    return this.collection.listMethod();
-  }
-
-  allowNewEntries() {
-    return this.collection.allowNewEntries();
-  }
-
-  templateName(slug) {
-    return this.collection.templateName(slug);
-  }
-}