non-consistent design on popup modals for authentication

[kaumnen]

Describe the bug Design on signup/login page is not consistent

To Reproduce its on signup/login modal:

sign in:

• black cursor, no border-line purple-ish color:

sign up:

• black cursor, no border-line purple-ish color:

Expected behavior All fields should be same design-wise. Also, i think that black cursor on black theme is not the best option.

[kaumnen]

for the reference, this is a field with correct outline:

but black cursor is present on every input field