fix(deps): fix undocumented dependencies on corejs & babel runtime

fix #138

.babelrc

@@ -4,17 +4,14 @@
             "@babel/preset-env",
             {
                 "targets": {
-                    "node": "8.10.0"
-                },
-                "corejs": 3,
-                "useBuiltIns": "usage"
+                    "node": "10.16.0"
+                }
             }
         ],
         "@babel/preset-flow"
     ],
     "plugins": [
-        "@babel/plugin-transform-flow-strip-types",
-        "@babel/plugin-transform-runtime"
+        "@babel/plugin-transform-flow-strip-types"
     ],
     "env": {
         "test": {

.circleci/config.yml

@@ -4,7 +4,7 @@ orbs:
 jobs:
   build:
     docker:
-      - image: circleci/node:10
+      - image: circleci/node:12
 
     working_directory: ~/repo
 
@@ -35,7 +35,7 @@ jobs:
           paths: .
   publish:
     docker:
-      - image: circleci/node:10
+      - image: circleci/node:12
     working_directory: ~/repo
     steps:
       - attach_workspace:

.nvmrc

@@ -1 +1 @@
-8
+10

README.md

@@ -33,7 +33,7 @@ where username is the user whose data you want to export, and filename is the na
 
 ### traktHistoryToCsv
 
-[src/main/index.js:19-28](https://github.com/bbeesley/trakt-to-letterboxd/blob/f2a599d9590719e5a0de8a87eb5d5519f2e2354f/src/main/index.js#L19-L28 "Source code on GitHub")
+[src/main/index.js:19-28](https://github.com/bbeesley/trakt-to-letterboxd/blob/66d1fc6eb6faf6a9f266f3ac339afd46649f4b5a/src/main/index.js#L19-L28 "Source code on GitHub")
 
 Export a trakt user's history to csv to be uploaded to letterboxd
 
@@ -47,19 +47,19 @@ Returns **[Promise](https://developer.mozilla.org/docs/Web/JavaScript/Reference/
 
 ### headers
 
-[src/main/fetcher.js:10-14](https://github.com/bbeesley/trakt-to-letterboxd/blob/f2a599d9590719e5a0de8a87eb5d5519f2e2354f/src/main/fetcher.js#L10-L14 "Source code on GitHub")
+[src/main/fetcher.js:10-14](https://github.com/bbeesley/trakt-to-letterboxd/blob/66d1fc6eb6faf6a9f266f3ac339afd46649f4b5a/src/main/fetcher.js#L10-L14 "Source code on GitHub")
 
 HTTP headers to send with our request to trakt's api
 
 ### options
 
-[src/main/fetcher.js:20-22](https://github.com/bbeesley/trakt-to-letterboxd/blob/f2a599d9590719e5a0de8a87eb5d5519f2e2354f/src/main/fetcher.js#L20-L22 "Source code on GitHub")
+[src/main/fetcher.js:20-22](https://github.com/bbeesley/trakt-to-letterboxd/blob/66d1fc6eb6faf6a9f266f3ac339afd46649f4b5a/src/main/fetcher.js#L20-L22 "Source code on GitHub")
 
 The fetch options object (only really needs headers)
 
 ### fetchMovies
 
-[src/main/fetcher.js:30-41](https://github.com/bbeesley/trakt-to-letterboxd/blob/f2a599d9590719e5a0de8a87eb5d5519f2e2354f/src/main/fetcher.js#L30-L41 "Source code on GitHub")
+[src/main/fetcher.js:30-41](https://github.com/bbeesley/trakt-to-letterboxd/blob/66d1fc6eb6faf6a9f266f3ac339afd46649f4b5a/src/main/fetcher.js#L30-L41 "Source code on GitHub")
 
 Fetches the user's history data from the trakt api
 
@@ -71,14 +71,14 @@ Returns **[Promise](https://developer.mozilla.org/docs/Web/JavaScript/Reference/
 
 ### schema
 
-[src/main/exporter.js:9-29](https://github.com/bbeesley/trakt-to-letterboxd/blob/f2a599d9590719e5a0de8a87eb5d5519f2e2354f/src/main/exporter.js#L9-L29 "Source code on GitHub")
+[src/main/exporter.js:9-29](https://github.com/bbeesley/trakt-to-letterboxd/blob/66d1fc6eb6faf6a9f266f3ac339afd46649f4b5a/src/main/exporter.js#L9-L29 "Source code on GitHub")
 
 Schema for the output csv.
 Based on <https://letterboxd.com/about/importing-data/>
 
 ### builder
 
-[src/main/exporter.js:37-38](https://github.com/bbeesley/trakt-to-letterboxd/blob/f2a599d9590719e5a0de8a87eb5d5519f2e2354f/src/main/exporter.js#L37-L38 "Source code on GitHub")
+[src/main/exporter.js:37-38](https://github.com/bbeesley/trakt-to-letterboxd/blob/66d1fc6eb6faf6a9f266f3ac339afd46649f4b5a/src/main/exporter.js#L37-L38 "Source code on GitHub")
 
 The instance of CsvBuilder we'll use to export the data.
 We need to remap the format of the last watched date to YYYY-MM-DD