Make TypeScript version requirements less stringent

[smolattack]

At time of writing this, it seems that the TypeScript version requirement is 5.3.2 which is very close to the latest TypeScript version.

router/package.json

Line 84 in 71f4e97

"typescript": "^5.3.2",

This makes it very difficult to transition to Tanstack router in existing projects that might be quite far behind the latest and greatest TypeScript version.

According to the download stats from npmjs.com (yes, I know this data is very one-dimensional but gives us a sense of scale), TypeScript 4.9.5 is still a very heavily used dependency which would preclude a huge chunk of projects from using Tanstack router.

Screenshots

I understand that there must have been a reason for using newer versions of TypeScript and that there was a push to get out of beta, but now that Tanstack router is officially released, could you slow down the TypeScript upgrade cycle to allow for more of us to catchup?