Lint updates: introduce documentation strings

*  correctemitted missind strings emitted via 'missing_docs' macro

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

advotracker_client/src/widgets/policycheck/policycheck_view.rs

@@ -22,15 +22,15 @@ widget!(
     /// This identifier is checked agains a map of valid policy codes.
     // PolicycheckView<PolicycheckState>: KeyDownHandler {
     PolicycheckView<PolicycheckState> {
-        // holds the language code
+        /// Holds the language code
         lang: String,
-        // provides a struct with `PolicyCheck` members
+        /// Provides a struct with `PolicyCheck` members
         policy_check: PolicyCheck,
-        // holds number of imported data
+        /// Holds number of imported data
         policy_data_count: u32,
-        // holds the title string
+        /// Holds the title string
         policy_check_title: String,
-        // widget entity that will receive the message
+        /// Widget entity that will receive the message
         target: u32
     }
 );