added migration for share token table

src/main/resources/db/migration/V3__Add_Share_Token_table.sql

@@ -8,3 +8,42 @@ CREATE TABLE IF NOT EXISTS share_token_entity
     CONSTRAINT fk_file FOREIGN KEY (file_id) REFERENCES file_entity (id)
 );
 
+-- Removing share_token and token_expiration_date columns
+
+ALTER TABLE file_entity
+    RENAME TO file_entity_old;
+
+CREATE TABLE file_entity
+(
+    id                INTEGER PRIMARY KEY AUTOINCREMENT,
+    description       VARCHAR(255),
+    keep_indefinitely BOOLEAN,
+    name              VARCHAR(255),
+    size              BIGINT,
+    upload_date       DATE,
+    uuid              VARCHAR(255),
+    password_hash     VARCHAR(255),
+    hidden            BOOLEAN DEFAULT FALSE
+);
+
+INSERT INTO file_entity (id,
+                         description,
+                         keep_indefinitely,
+                         name,
+                         size,
+                         upload_date,
+                         uuid,
+                         password_hash,
+                         hidden)
+SELECT id,
+       description,
+       keep_indefinitely,
+       name,
+       size,
+       upload_date,
+       uuid,
+       password_hash,
+       hidden
+FROM file_entity_old;
+
+DROP TABLE file_entity_old;