other: add missing process column comment/schema description (#1623)

* add todo

* rerun schema

schema/nightly/bottom.json

@@ -674,6 +674,7 @@
       }
     },
     "ProcColumn": {
+      "description": "A column in the process widget.",
       "type": "string",
       "enum": [
         "CPU%",

src/options.rs

@@ -261,6 +261,7 @@ pub(crate) fn init_app(
             if cfg.columns.is_empty() {
                 None
             } else {
+                // TODO: Should we be using an indexmap? Or maybe allow dupes.
                 Some(IndexSet::from_iter(
                     cfg.columns.iter().map(ProcWidgetColumn::from),
                 ))

src/widgets/process_table/process_columns.rs

@@ -8,6 +8,7 @@ use crate::{
     utils::general::sort_partial_fn,
 };
 
+/// A column in the process widget.
 #[derive(Debug, PartialEq, Eq, Copy, Clone, Hash)]
 #[cfg_attr(
     feature = "generate_schema",