[Address Book V2] Import address book

[juampibermani]

What:

Closes #2236

Why:

We are adding the import of CSV files to let the user load entries to the address book

How:

Added a modal that let's you load a single file and gives you feedback on how many entries have been loaded

How to test it:

• Enter the address book page
• Click on the top right Import button
• Load a CSV file (also supports xls and xlsx files) that has two columns (address, name)
• Click on import
• Entries should be added and a notification should appear

Checklist:

• Tests added/updated "N/A"
• Ready to be merged "N/A"

Right now the entries are saved using addAddressBookEntry(). This will not overwrite the name of an entry that's already in the store. This will be changed on the store refactor.

[github-actions]

CLA Assistant Lite All Contributors have signed the CLA.

[github-actions]

ESLint Summary View Full Report

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Type	Occurrences	Fixable
Errors	0	0
Warnings	2	0
Ignored	0	N/A

• Result: ✅ success

• Annotations: 2 total

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[warning] @typescript-eslint/explicit-module-boundary-types

Require explicit return and argument types on exported functions' and classes' public class methods

• src/routes/safe/components/AddressBook/ImportEntryModal/index.tsx Line 45 - Missing return type on function.
• src/routes/safe/components/AddressBook/ImportEntryModal/index.tsx Line 45 - Object pattern argument should be typed.

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^{Report generated by eslint-plus-action}

[github-actions]

• Safe Multisig app rinkeby

[github-actions]

• Safe Multisig app mainnet

[katspaugh]

Could you replace this comment with:

    max-height: 50px;
    overflow: hidden;

This should fix long file names.

[katspaugh]

Looks and works amazing!
Great work guys!