new: use generated ids for servers (#765)

* new: use generated ids for servers
Fixes #743

* fix: deps.

* fix: migrate related settings

* fix: restore servers from json

pubspec.yaml

@@ -16,7 +16,6 @@ dependencies:
   easy_isolate: ^1.3.0
   intl: ^0.19.0
   highlight: ^0.7.0
-  equatable: ^2.0.7
   flutter_highlight: ^0.7.0
   re_editor: ^0.7.0
   shared_preferences: ^2.1.1
@@ -63,7 +62,7 @@ dependencies:
   fl_lib:
     git:
       url: https://github.com/lppcg/fl_lib
-      ref: v1.0.289
+      ref: v1.0.294
 
 dependency_overrides:
   # webdav_client_plus: