Integrated the following chains to safle-vault opBNB, Ronin, Sei Skale - Nebula, Immutable zk-EVM

[Husienvora]

-Adding new default EVM chains

[github-actions]

Coverage Report (79%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	78.89	69.58	90.1	79.2
chains	94.73	50	100	94.73
index.js	94.73	50	100	94.73	60
config	100	100	100	100
index.js	100	100	100	100
constants	100	100	100	100
index.js	100	100	100	100
constants/responses	100	100	100	100
index.js	100	100	100	100
lib	79.75	71.57	91.42	79.69
keyring.js	77.37	70.2	91.22	77.27	53, 70, 80, 84–85, 168–188, 241, 284–294, 371–449, 478, 496–497, 507, 513, 522, 528, 558–567, 572, 586–591, 601, 607, 616, 622, 638, 644, 658–663, 672, 678, 687, 693, 701, 715, 738, 768–781, 871–874, 1085, 1115, 1141–1142, 1161–1278, 1380, 1409–1412, 1436–1438, 1485, 1544–1547, 1575, 1620, 1626
vault.js	92.38	83.67	92.3	92.38	24, 34, 56–58, 87, 100, 116
utils	71.75	55.38	82.35	73.8
helper.js	71.75	55.38	82.35	73.8	9–16, 89–99, 132, 155, 167–169, 178–182, 203–205, 232, 250, 268, 335–367

[sshubhamagg]

1. Change PR heading
2. add names of integrated chains to changelog

[apoorvq]

Left comments for some basic changes.

[apoorvq]

Please put the name of the chains added

[apoorvq]

Is this Immutable or Immutable ZK?

[apoorvq]

This file is not supposed to be changed in this PR, please raise a separate PR for this. @Husienvora