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/messages/src/lane.rs

@@ -110,7 +110,7 @@ impl TypeId for LegacyLaneId {
 ///
 /// ```nocompile
 /// let endpoint1 = X2(GlobalConsensus(NetworkId::Pezkuwi), Teyrchain(42));
-/// let endpoint2 = X2(GlobalConsensus(NetworkId::Kusama), Teyrchain(777));
+/// let endpoint2 = X2(GlobalConsensus(NetworkId::Dicle), Teyrchain(777));
 ///
 /// let final_lane_key = if endpoint1 < endpoint2 {
 ///     (endpoint1, VALUES_SEPARATOR, endpoint2)