Adiciona campo field_user_homepage e ícone de página pessoal no bloco

- Novo campo link field_user_homepage (página pessoal do usuário)
- Update hook 10009 para instalações existentes
- MicrositeHeaderBlock: variável #homepage via getFieldUri()
- Template: link com ícone 'home' como primeiro item nos links acadêmicos
- CSS: fill para ícone de casinha no fundo escuro do header

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

config/optional/field.field.user.user.field_user_homepage.yml

@@ -0,0 +1,22 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.user.field_user_homepage
+  module:
+    - link
+    - user
+id: user.user.field_user_homepage
+field_name: field_user_homepage
+entity_type: user
+bundle: user
+label: 'Personal homepage'
+description: 'URL of the user personal homepage.'
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  title: 0
+  link_type: 16
+field_type: link

config/optional/field.storage.user.field_user_homepage.yml

@@ -0,0 +1,20 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - link
+    - user
+id: user.field_user_homepage
+field_name: field_user_homepage
+entity_type: user
+type: link
+settings:
+  title: 0
+  link_type: 16
+module: link
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false