feat(dapp): extend Advanced Staking to V4

This commit extends the "Advanced Staking" feature by adding support for
a new version - "Advanced Staking V4". This new version is expected to
be used for an additional 4 months.

The changes include:
-  Updating the staking term in the production environment file.
-  Adding the new staking term in the stake-terms constants.
-  Including the new staking term in the list of terms fetched by the
   getStakeTerms function.
-  Adjusting the rewards calculation function to include the new staking
   term.
-  Updating the StakeTypes type and StakeType enum to include the new
   staking term.

These changes are necessary to continue providing the Advanced Staking
feature to users, with updated terms and conditions.

dapp/.env.production

@@ -31,7 +31,7 @@ SUBGRAPH_IDS_137=QmTi7Z7YoUpzYqwGytPuKYu2FuYPEhtPTsXti5dRxn8wHR,QmZPs5CFi5vpZW73
 Z_ASSETS_REGISTRY_CONTRACT_137=0xb658B085144a0BEd098620BB829b676371B9B48c
 
 ADVANCED_STAKING_APY=15
-CURRENT_STAKING_TERM=advanced-v3
+CURRENT_STAKING_TERM=advanced-v4
 APY_PRP=10
 
 # Faucet

dapp/src/constants/stake-terms.ts

@@ -9,12 +9,14 @@ export const CLASSIC_TYPE_HEX = utils.id('classic').slice(0, 10);
 export const ADVANCED_TYPE_HEX = utils.id('advanced').slice(0, 10);
 export const ADVANCED_2_TYPE_HEX = utils.id('advanced-v2').slice(0, 10);
 export const ADVANCED_3_TYPE_HEX = utils.id('advanced-v3').slice(0, 10);
+export const ADVANCED_4_TYPE_HEX = utils.id('advanced-v4').slice(0, 10);
 
 export const HEX_STAKE_TYPE_TO_STAKE_TYPE = new Map<string, StakeTypes>([
     [CLASSIC_TYPE_HEX, 'classic'],
     [ADVANCED_TYPE_HEX, 'advanced'],
     [ADVANCED_2_TYPE_HEX, 'advanced-v2'],
     [ADVANCED_3_TYPE_HEX, 'advanced-v3'],
+    [ADVANCED_4_TYPE_HEX, 'advanced-v4'],
 ]);
 
 export const STAKE_TYPE_TO_HEX_STAKE_TYPE = invertMap(

dapp/src/redux/slices/staking/stake-terms.ts

@@ -40,6 +40,7 @@ export const getStakeTerms = createAsyncThunk(
             StakeType.Classic,
             StakeType.AdvancedTwo,
             StakeType.AdvancedThree,
+            StakeType.AdvancedFour,
         ]) {
             const terms = await getStakingTermsFromContract(
                 library,

dapp/src/services/rewards.ts

@@ -7,6 +7,7 @@ import {
     ADVANCED_TYPE_HEX,
     ADVANCED_2_TYPE_HEX,
     ADVANCED_3_TYPE_HEX,
+    ADVANCED_4_TYPE_HEX,
     HEX_STAKE_TYPE_TO_STAKE_TYPE,
 } from 'constants/stake-terms';
 import {oneYearInMs} from 'constants/time';
@@ -168,7 +169,8 @@ export function calculateRewardsForStake(
     if (
         stake.stakeType === ADVANCED_TYPE_HEX ||
         stake.stakeType === ADVANCED_2_TYPE_HEX ||
-        stake.stakeType === ADVANCED_3_TYPE_HEX
+        stake.stakeType === ADVANCED_3_TYPE_HEX ||
+        ADVANCED_4_TYPE_HEX
     ) {
         return calculateRewardsForAdvancedStake(
             stake,

dapp/src/types/staking.ts

@@ -5,13 +5,19 @@ import {IStakingTypes} from 'contracts/Staking';
 import {BigNumber} from 'ethers';
 import {LoadingStatus} from 'loading';
 
-export type StakeTypes = 'classic' | 'advanced' | 'advanced-v2' | 'advanced-v3';
+export type StakeTypes =
+    | 'classic'
+    | 'advanced'
+    | 'advanced-v2'
+    | 'advanced-v3'
+    | 'advanced-v4';
 
 export enum StakeType {
     Classic = 'classic',
     Advanced = 'advanced',
     AdvancedTwo = 'advanced-v2',
     AdvancedThree = 'advanced-v3',
+    AdvancedFour = 'advanced-v4',
 }
 
 export type StakeReward = {