Fix PropType warning about `quoteDataRows[0].rawNetworkFees` (#9842)

The property `quoteDataRows[0]rawNetworkFees` was described as a number
rather than a string. In practice it is a string in all cases. The
PropType and the tests have both been updated to expect it to be a
string.

ui/app/pages/swaps/select-quote-popover/mock-quote-data.js

@@ -8,7 +8,7 @@ const quoteDataRows = [
     isBestQuote: false,
     networkFees: '$15.25',
     quoteSource: 'AGG',
-    rawNetworkFees: 10.25,
+    rawNetworkFees: '10.25',
     slippage: '1%',
     sourceTokenDecimals: 18,
     sourceTokenSymbol: 'ETH',
@@ -23,7 +23,7 @@ const quoteDataRows = [
     isBestQuote: false,
     networkFees: '$14.26',
     quoteSource: 'RFQ',
-    rawNetworkFees: 10.26,
+    rawNetworkFees: '10.26',
     slippage: '1%',
     sourceTokenDecimals: 18,
     sourceTokenSymbol: 'ETH',
@@ -38,7 +38,7 @@ const quoteDataRows = [
     isBestQuote: false,
     networkFees: '$13.27',
     quoteSource: 'DEX',
-    rawNetworkFees: 10.27,
+    rawNetworkFees: '10.27',
     slippage: '1%',
     sourceTokenDecimals: 18,
     sourceTokenSymbol: 'ETH',
@@ -53,7 +53,7 @@ const quoteDataRows = [
     isBestQuote: true,
     networkFees: '$12.28',
     quoteSource: 'AGG',
-    rawNetworkFees: 10.28,
+    rawNetworkFees: '10.28',
     slippage: '1%',
     sourceTokenDecimals: 18,
     sourceTokenSymbol: 'ETH',
@@ -68,7 +68,7 @@ const quoteDataRows = [
     isBestQuote: false,
     networkFees: '$11.29',
     quoteSource: 'RFQ',
-    rawNetworkFees: 10.29,
+    rawNetworkFees: '10.29',
     slippage: '1%',
     sourceTokenDecimals: 18,
     sourceTokenSymbol: 'ETH',
@@ -83,7 +83,7 @@ const quoteDataRows = [
     isBestQuote: false,
     networkFees: '$10.30',
     quoteSource: 'DEX',
-    rawNetworkFees: 10.3,
+    rawNetworkFees: '10.3',
     slippage: '1%',
     sourceTokenDecimals: 18,
     sourceTokenSymbol: 'ETH',

ui/app/pages/swaps/select-quote-popover/select-quote-popover-constants.js

@@ -9,7 +9,7 @@ export const QUOTE_DATA_ROWS_PROPTYPES_SHAPE = PropTypes.shape({
   isBestQuote: PropTypes.bool,
   networkFees: PropTypes.string.isRequired,
   quoteSource: PropTypes.string.isRequired,
-  rawNetworkFees: PropTypes.number.isRequired,
+  rawNetworkFees: PropTypes.string.isRequired,
   slippage: PropTypes.string.isRequired,
   sourceTokenDecimals: PropTypes.number.isRequired,
   sourceTokenSymbol: PropTypes.string.isRequired,