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

pezcumulus/pezkuwi-omni-node/lib/src/command.rs

@@ -315,7 +315,7 @@ where
 				// deleting one path) the information that they want to use as their DB.
 				let old_name = match config.chain_spec.id() {
 					"asset-hub-pezkuwi" => Some("statemint"),
-					"asset-hub-kusama" => Some("statemine"),
+					"asset-hub-dicle" => Some("statemine"),
 					"asset-hub-zagros" => Some("westmint"),
 					"asset-hub-pezkuwichain" => Some("rockmine"),
 					_ => None,