rebrand: kusama → dicle

- Replace all kusama/Kusama references with dicle/Dicle
- Rename weight files from ksm_size to dcl_size
- Update papi-tests files from ksm to dcl
- Remove chain-specs/kusama.json files
- cargo check --workspace successful (Finished output)
- Update MAINNET_ROADMAP.md: FAZ 8 completed

pezkuwi/node/service/src/builder/partial.rs

@@ -163,8 +163,8 @@ where
 		.build(),
 	);
 
-	let grandpa_hard_forks = if config.chain_spec.is_kusama() {
-		grandpa_support::kusama_hard_forks()
+	let grandpa_hard_forks = if config.chain_spec.is_dicle() {
+		grandpa_support::dicle_hard_forks()
 	} else {
 		Vec::new()
 	};