Table cells widths are uneven.

Problem description: on small screens table cells have uneven widths which looks odd.


This seems to be related to the length of the username and word wrapping.

Reproduction repository: https://github.com/ehmicky/portable-node-guide

Must be looked at on a smartphone.

- `all-contributors-cli` version: `6.1.2`
- `node` version: `11.11.0`
- `npm` (or `yarn`) version: `6.9.0`

Relevant code or config

```javascript
{
"projectName": "portable-node-guide",
"projectOwner": "ehmicky",
"repoType": "github",
"repoHost": "https://github.com",
"files": [
"README.md"
],
"imageSize": 100,
"commit": true,
"contributors": [
{
"login": "ehmicky",
"name": "ehmicky",
"avatar_url": "https://avatars2.githubusercontent.com/u/8136211?v=4",
"profile": "https://twitter.com/ehmicky",
"contributions": [
"code",
"design",
"ideas",
"doc"
]
},
{
"login": "thatalextaylor",
"name": "thatalextaylor",
"avatar_url": "https://avatars3.githubusercontent.com/u/1481643?v=4",
"profile": "https://github.com/thatalextaylor",
"contributions": [
"ideas",
"doc"
]
},
{
"login": "bnoordhuis",
"name": "Ben Noordhuis",
"avatar_url": "https://avatars0.githubusercontent.com/u/275871?v=4",
"profile": "https://github.com/bnoordhuis",
"contributions": [
"ideas",
"doc"
]
},
{
"login": "SteveALee",
"name": "Steve Lee",
"avatar_url": "https://avatars2.githubusercontent.com/u/618922?v=4",
"profile": "http://opendirective.com",
"contributions": [
"ideas",
"doc",
"talk"
]
},
{
"login": "tracker1",
"name": "Michael J. Ryan",
"avatar_url": "https://avatars3.githubusercontent.com/u/444316?v=4",
"profile": "http://tracker1.info/",
"contributions": [
"ideas"
]
}
],
"contributorsPerLine": 7
}
```