add blacklist model and refactor channel kind 43 43

src-tauri/migrations/20230425050745_add_blacklist_model.sql

@@ -0,0 +1,11 @@
+-- Add migration script here
+-- create blacklist table
+CREATE TABLE
+  blacklist (
+    id INTEGER NOT NULL PRIMARY KEY,
+    account_id INTEGER NOT NULL,
+    content TEXT NOT NULL UNIQUE,
+    status INTEGER NOT NULL DEFAULT 0,
+    kind INTEGER NOT NULL,
+    FOREIGN KEY (account_id) REFERENCES accounts (id)
+  );