Enable and configure Footnotes module

Ref #70

config/sync/core.extension.yml

@@ -52,6 +52,7 @@ module:
   entity_reference_revisions: 0
   exclude_node_title: 0
   facets: 0
+  fakeobjects: 0
   faqfield: 0
   field: 0
   field_group: 0
@@ -61,6 +62,7 @@ module:
   filter: 0
   fixed_block_content: 0
   focal_point: 0
+  footnotes: 0
   gdpr: 0
   geo_citation: 0
   geo_upgrade: 0

config/sync/editor.editor.full_html.yml

@@ -27,6 +27,7 @@ settings:
         -
           name: Linking
           items:
+            - footnotes
             - Linkit
             - DrupalUnlink
         -

config/sync/filter.format.full_html.yml

@@ -4,6 +4,7 @@ status: true
 dependencies:
   module:
     - editor
+    - footnotes
     - noreferrer
 _core:
   default_config_hash: Ntb6R4iBtiXqdVDdJTRFIQFCPmwCTUi9hbphjDkjZWA
@@ -15,31 +16,31 @@ filters:
     id: filter_align
     provider: filter
     status: true
-    weight: 8
+    weight: -50
     settings: {  }
   filter_caption:
     id: filter_caption
     provider: filter
     status: true
-    weight: 9
+    weight: -49
     settings: {  }
   filter_htmlcorrector:
     id: filter_htmlcorrector
     provider: filter
     status: true
-    weight: 10
+    weight: -41
     settings: {  }
   editor_file_reference:
     id: editor_file_reference
     provider: editor
     status: true
-    weight: 11
+    weight: -47
     settings: {  }
   filter_html:
     id: filter_html
     provider: filter
     status: false
-    weight: -10
+    weight: -46
     settings:
       allowed_html: '<em> <strong> <cite> <blockquote cite> <code> <ul type> <ol type start> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h4 id> <h5 id> <h6 id> <s> <sup> <sub> <img src alt data-entity-type data-entity-uuid data-align data-caption> <table> <caption> <tbody> <thead> <tfoot> <th> <td> <tr> <hr> <p> <h1> <pre> <a href hreflang !href accesskey id rel target title>'
       filter_html_help: true
@@ -48,5 +49,38 @@ filters:
     id: noreferrer
     provider: noreferrer
     status: true
-    weight: 10
+    weight: -48
     settings: {  }
+  filter_html_escape:
+    id: filter_html_escape
+    provider: filter
+    status: false
+    weight: -45
+    settings: {  }
+  filter_html_image_secure:
+    id: filter_html_image_secure
+    provider: filter
+    status: false
+    weight: -40
+    settings: {  }
+  filter_url:
+    id: filter_url
+    provider: filter
+    status: false
+    weight: -43
+    settings:
+      filter_url_length: 72
+  filter_autop:
+    id: filter_autop
+    provider: filter
+    status: false
+    weight: -44
+    settings: {  }
+  filter_footnotes:
+    id: filter_footnotes
+    provider: footnotes
+    status: true
+    weight: -42
+    settings:
+      footnotes_collapse: '0'
+      footnotes_html: '1'