Custom Mobile Kanban Board Development

We need to make a Kanban projet.

Check this https://prnt.sc/FY0kJtH7LoSO and https://prnt.sc/KFi1J3RapTEj
- A: We need to add this number input:
https://www.cssscript.com/demo/animated-input-spinner-pure-javascript-csscss3/
or
https://www.cssscript.com/demo/number-spinner-quantity-input/
but should add 100 per 100
From
https://www.jqueryscript.net/blog/best-number-input-spinner.html

- B: we need to add 2 kind of arrow
1) Down (with this we can change the box position) place it in left side https://prnt.sc/-cBA4XocvQeu
2) Up (with this we can change the box position) leave it in original side right side
Is like a Kanban code

- F: When we tap there should open a same as this https://prnt.sc/JNpDMwiE2liN
To get all currencies for this we will use 2 API
1) To get flags and county name use https://flagsapi.com/
2) To get the currencies rate https://docs.openexchangerates.org/reference/api-introduction from https://openexchangerates.org/

- C: Use https://flagsapi.com/ to get the flag and country name

- D: Show the rate make it more bigger and put it in middle of the box
you should use this API to get the rate https://openexchangerates.org/
then the result should be convert from the amount of the box above
For first bow the amount is from the point A

- E: Use the API https://openexchangerates.org/ to know the last update date rate

Leave this https://prnt.sc/qkzUagdc-1eE but instead add this button https://prnt.sc/RSSqj9c6P4WG from https://www.figma.com/community/file/1257985879197547796/ai-and-search-with-prototype

PS: for this task user will use his phone then should be 10000% responsive
and you can use any language