Add Prettier for linting and fix Solhint config (#2697)

Co-authored-by: Francisco Giordano <frangio.1@gmail.com>

contracts/mocks/DummyImplementation.sol

@@ -3,55 +3,59 @@
 pragma solidity ^0.8.0;
 
 abstract contract Impl {
-  function version() public pure virtual returns (string memory); 
+    function version() public pure virtual returns (string memory);
 }
 
 contract DummyImplementation {
-  uint256 public value;
-  string public text;
-  uint256[] public values;
+    uint256 public value;
+    string public text;
+    uint256[] public values;
 
-  function initializeNonPayable() public {
-    value = 10;
-  }
+    function initializeNonPayable() public {
+        value = 10;
+    }
 
-  function initializePayable() public payable {
-    value = 100;
-  }
+    function initializePayable() public payable {
+        value = 100;
+    }
 
-  function initializeNonPayableWithValue(uint256 _value) public {
-    value = _value;
-  }
+    function initializeNonPayableWithValue(uint256 _value) public {
+        value = _value;
+    }
 
-  function initializePayableWithValue(uint256 _value) public payable {
-    value = _value;
-  }
+    function initializePayableWithValue(uint256 _value) public payable {
+        value = _value;
+    }
 
-  function initialize(uint256 _value, string memory _text, uint256[] memory _values) public {
-    value = _value;
-    text = _text;
-    values = _values;
-  }
+    function initialize(
+        uint256 _value,
+        string memory _text,
+        uint256[] memory _values
+    ) public {
+        value = _value;
+        text = _text;
+        values = _values;
+    }
 
-  function get() public pure returns (bool) {
-    return true;
-  }
+    function get() public pure returns (bool) {
+        return true;
+    }
 
-  function version() public pure virtual returns (string memory) {
-    return "V1";
-  }
+    function version() public pure virtual returns (string memory) {
+        return "V1";
+    }
 
-  function reverts() public pure {
-    require(false, "DummyImplementation reverted");
-  }
+    function reverts() public pure {
+        require(false, "DummyImplementation reverted");
+    }
 }
 
 contract DummyImplementationV2 is DummyImplementation {
-  function migrate(uint256 newVal) public payable {
-    value = newVal;
-  }
+    function migrate(uint256 newVal) public payable {
+        value = newVal;
+    }
 
-  function version() public pure override returns (string memory) {
-    return "V2";
-  }
+    function version() public pure override returns (string memory) {
+        return "V2";
+    }
 }