Fix normal e2e tests

[Senyoret1]

In this repository it is possible to execute e2e tests with both npm run e2e and npm run e2e-blockchain-180. npm run e2e-blockchain-180 is used to run the tests in Travis, using a limited and controlled database, but that command is inconvenient to run the tests during normal development, because it involves using a node with blockchain-180.db, that's why npm run e2e exists, to be able to run the tests with a normal node.

This PR makes the configuration of npm run e2e to be more similar to that of npm run e2e-blockchain-180, to avoid some problems that occurred only when executing npm run e2e.

[olemis]

Do you use make or similar? It'd be possible to have different (reusable) make targets for each situation .

[Senyoret1]

It uses npm, which is somewhat similar to using make. The problem was simply that in the two configurations a different screen resolutions was used and that changed some of the contents due to the responsive design. This PR simply fixes that

[gz-c]

@Senyoret1 in skycoin/skycoin, we've changed blockchain-180.db to include a unconfirmed transaction. The original db file is now blockchain-180-no-unconfirmed.db. You may want to use the updated database in order to test the unconfirmed page

[Senyoret1]

@gz-c It was already done in #238 👍