Improve UI in RTL mode & Improve performance of DropdownMenu

[Ammar64]

I fixed UI in RTL Mode.
I think the calculator layout should stay as it is in RTL mode.
Those parenthesis were annoying.

Before	After

I also improved the performance of the Dropdown menu of the UnitConverter screen.
The difference is significant in currencies screen as it has the largest dropdown menu.
It now opens much faster since I'm using LazyColumn.

[Ammar64]

I think we should move the calculator history to a separate screen to save some space on the screen.
and that calculator history box doesn't scroll down to the latest operation when you tap =

[Bnyro]

Please remove the commited changes to .idea.

[Ammar64]

Oops.
I think it should be added to .gitignore.
My IDE automatically edited these files without me noticing.

[Bnyro]

Yeah, I agree.

[Bnyro]

itemHeight doesn't need to be a mutable state since it's never modified, you can place use 45.dp directly in dropDownHeight.

[Bnyro]

Suggested change

	.width(width)
	.fillMaxWidth()

didn't work here?

[Ammar64]

I tried .fillMaxWidth() and it crashes whenever you open the dropdown menu

[Bnyro]

Thank you for the PR!

I've also noticed the performance issues when opening the currency converter dropdown, so these changes are very welcome :)

[Bnyro]

I think we should move the calculator history to a separate screen to save some space on the screen.

I'm not sure about that, I find it quite useful to have the history on the same screen. Sometimes I need some result of a previous calculation for the next expression I want to calculate, so it makes sense to see it at the same glance.

and that calculator history box doesn't scroll down to the latest operation when you tap =

True, we should fix that.

[Bnyro]

and that calculator history box doesn't scroll down to the latest operation when you tap =
True, we should fix that.

Fixed with ddbb5ce.

[Ammar64]

I'm not sure about that, I find it quite useful to have the history on the same screen. Sometimes I need some result of a previous calculation for the next expression I want to calculate, so it makes sense to see it at the same glance.

It is hard to find the result of previous calculation because you only see 2 rows in the history box and you have to keep scrolling until you find it.
Same thing with the currency converter screen.
It's hard to find the currency you want in the dropdown menu and it's also hard to find the currency you want to convert to in the results list.

[Ammar64]

It's hard to find the currency you want in the dropdown menu and it's also hard to find the currency you want to convert to in the results list.

Adding search in the currency screen may solve the issue?

[Bnyro]

It is hard to find the result of previous calculation because you only see 2 rows in the history box and you have to keep scrolling until you find it.

At least from my experience it's simple enough because I don't do more than 10 calculations in a session, I guess we won't find an agreement here :)

It's hard to find the currency you want in the dropdown menu and it's also hard to find the currency you want to convert to in the results list.

I agree on that, pull requests welcome.

[Bnyro]

Thank you!