chore(node-metrics): Rename node metrics "num_blocks_total" to "num_blocks_proposed_total"

Author: sasa-tomic

rs/replicated_state/src/metadata_state.rs

@@ -2182,7 +2182,7 @@ impl BlockmakerMetricsTimeSeries {
                     .iter()
                     .map(|(node_id, stats)| NodeMetrics {
                         node_id: node_id.get(),
-                        num_blocks_total: stats.blocks_proposed_total,
+                        num_blocks_proposed_total: stats.blocks_proposed_total,
                         num_block_failures_total: stats.blocks_not_proposed_total,
                     })
                     .collect();

rs/types/management_canister_types/src/lib.rs

@@ -2466,14 +2466,14 @@ impl Payload<'_> for NodeMetricsHistoryArgs {}
 /// ```text
 /// record {
 ///     node_id : principal;
-///     num_blocks_total : nat64;
+///     num_blocks_proposed_total : nat64;
 ///     num_block_failures_total : nat64;
 /// }
 /// ```
 #[derive(Default, Clone, CandidType, Deserialize, Debug)]
 pub struct NodeMetrics {
     pub node_id: PrincipalId,
-    pub num_blocks_total: u64,
+    pub num_blocks_proposed_total: u64,
     pub num_block_failures_total: u64,
 }