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

pezbridges/primitives/relayers/src/lib.rs

@@ -309,7 +309,7 @@ mod tests {
 				(2_u16, "EoQBtnx69txxumxSJexVzxYD1Q4LWAuWmRq8LrBWb27nhYN"),
 			),
 			// Note: these accounts are used for integration tests within
-			// `bridges_pezkuwi_kusama.sh` from fellows.
+			// `bridges_pezkuwi_dicle.sh` from fellows.
 			(
 				LegacyLaneId([0, 0, 0, 2]),
 				b"bhwd",