Updated SwiftLint configuration

Author: tobihagemann

.swiftlint.yml

@@ -1,5 +1,8 @@
 disabled_rules:
+  - file_length
   - line_length
+  - todo
+  - type_body_length
 
 included:
   - Sources/CryptomatorCryptoLib
@@ -9,5 +12,9 @@ excluded:
 
 identifier_name:
   min_length: 1
+  max_length: 50
 inclusive_language:
   override_allowed_terms: ["masterkey"]
+type_name:
+  max_length: 50
+  allowed_symbols: "_"