fix(nc-gui): dark mode styles for longtext field in form view

[bcakmakoglu]

Change Summary

• ref: #4090

Change type

• [ ] feat: (new feature for the user, not a new feature for build script)
• [x] fix: (bug fix for the user, not a fix to a build script)
• [ ] docs: (changes to the documentation)
• [ ] style: (formatting, missing semi colons, etc; no production code change)
• [ ] refactor: (refactoring production code, eg. renaming a variable)
• [ ] test: (adding missing tests, refactoring tests; no production code change)
• [ ] chore: (updating grunt tasks etc; no production code change)

Test/ Verification

Provide summary of changes.

Additional information / screenshots (optional)

Anything for maintainers to be made aware of

[bcakmakoglu]

Ah thanks for pointing that put, I'll correct that :)

[bcakmakoglu]

@wingkwong Issues are fixed

[bcakmakoglu]

@wingkwong Whoops i forgot to exchange the submit fn ^^ Should be fine now.

Also set an upper limit of 5s for transitions.