[feature] Serialize local account role via API, and show it via web view (#1045)

* [feature] Add 'role' field to api serialization of local accounts

* [chore] Add a bit of license text while I'm here

* [frogend] render account role on same line as username in web view of profile

* style tweaking on role badges, general profile header layout

* profile stats wrapping

* don't render standard 'user' role on web view

Co-authored-by: f0x <f0x@cthu.lu>

docs/api/swagger.yaml

@@ -252,6 +252,14 @@ definitions:
                 description: Bio/description of this account.
                 type: string
                 x-go-name: Note
+            role:
+                description: |-
+                    Role of the account on this instance.
+                    Omitted for remote accounts.
+                    type: accountRole
+                example: user
+                type: string
+                x-go-name: Role
             source:
                 $ref: '#/definitions/Source'
             statuses_count: