fix: dont reset invoice generator form on failed submission

[patrr2]

Description

Closes #607

Testing checklist:

• Now error on submission doesn't cause form reset
• Successfull submission resets form
• Exactly same body is sent to the endpoint on submission (i.e. behaves the same as prev commit)

Before submitting the PR, please make sure you do the following

• If your PR is related to a previously discussed issue, please link to it here.
• Prefix your PR title with feat:, fix:, chore:, or docs:.
• This message body should clearly illustrate what problems it solves.
• Make sure the commit history is linear, up-to-date with main branch and does not contain any erroneous changes

Formatting and linting

• Format code with pnpm format and lint the project with pnpm lint

[lajp]

Hi, this doesn't seem to work for me. The form still gets cleared on failed server-side validation

[patrr2]

Okei, tutkitaan asiaa miitissä

[lajp]

Hi, this doesn't seem to work for me. The form still gets cleared on failed server-side validation

nvm, I accidentally tested the wrong thing. Works like a charm!