Fix/daef 466 Limit and validate Wallet name max length

[nikolaglumac]

This PR introduces maximum length validation (and limiting) of wallet name attribute.
Wallet name maximum length is set to 40 characters.
In the scope of this PR sidebar styling was updated - until now wallet name shown sidebar items was truncated via char count (which has different results based on width of individual characters) and now we use more precise CSS method (text-oveflow: ellipsis).

TODO

• Inject update Japanese translation for invalid wallet name error message:

"global.errors.invalidWalletName": "Requires at least 3 and at most 40 letters."

[mention-bot]

@nikolaglumac, thanks for your PR! By analyzing the history of the files in this pull request, we identified @DominikGuzei, @tomothespian and @darko-mijic to be potential reviewers.

[DominikGuzei]

Will review this now

[DominikGuzei]

The code looks good! 👍
There is one problem left to fix:

(the wallet name should also be truncated in the top bar, so that it doesn't reach into the sync label)

[DominikGuzei]

Hiroto just sent me the translation for the error message:
ウォレット名は3文字以上40文字以内である必要があります

The direct translation to English would be Wallet name requires at least 3 and at most 40 letters which also seems to be more precise, so you could also update that 😉

[nikolaglumac]

@DominikGuzei both English and Japanese translations are now updated.
Syncing label overlap will not happen in the mainnet and creating solution which doesn't overlap is to complex so it is decided we keep things as-is.

[DominikGuzei]

Travis build fails due to broken mac install script … does not seem to be related to the frontend code changes in this PR.