Fix adapter-netlify query params splitting (#1466)

[adamjkb]

Instead of manually recreating the query parameters object from Netlify Functions' queryStringParameters object it is directly using the rawQuery object to create the URLSearchParams.

Fixes #1466

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[benmccann]

lgtm except that you're bumping the version number more than we normally do

[benmccann]

It looks to me like adapter-begin should be updated in the same way:

kit/packages/adapter-begin/src/index.js

Line 10 in 06380d7

for (const k in queryStringParameters) {

Would you mind updating that one as well?

[adamjkb]

It looks to me like adapter-begin should be updated in the same way:

kit/packages/adapter-begin/src/index.js

Line 10 in 06380d7

for (const k in queryStringParameters) {

Would you mind updating that one as well?

Sure thing, I updated that one as well.