fix: tree-shake mnemonist (#83)

* fix: tree-shake mnemonist

* Fix code style issues with Prettier

Co-authored-by: Lint Action <lint-action@samuelmeuli.com>

.eslintrc.json

@@ -38,6 +38,14 @@
             "message": "Please import from '@ethersproject/module' directly to support tree-shaking."
           }
         ]
+      },
+      {
+        "paths": [
+          {
+            "name": "mnemonist",
+            "message": "Please import from 'mnemonist/module' directly to support tree-shaking."
+          }
+        ]
       }
     ]
   }

src/routers/alpha-router/functions/best-swap-route.ts

@@ -3,7 +3,8 @@ import { Protocol } from '@uniswap/router-sdk';
 import { TradeType } from '@uniswap/sdk-core';
 import JSBI from 'jsbi';
 import _ from 'lodash';
-import { FixedReverseHeap, Queue } from 'mnemonist';
+import FixedReverseHeap from 'mnemonist/fixed-reverse-heap';
+import Queue from 'mnemonist/queue';
 import { ChainId, HAS_L1_FEE } from '../../../util';
 import { CurrencyAmount } from '../../../util/amounts';
 import { log } from '../../../util/log';