CodeEdit: Auto Indent behaves differently than Convert Indent to Tabs or Spaces.

[capnm]

Godot version

3.x, 4.x

Issue description

IMO Auto Indent should call Convert Indent to Tabs or Convert Indent to Spaces, dependent on the default editor settings for tabs or spaces.
And / or properly adjust the indentation in the current cursor line (or line selection), if this was implemented for this purpose (I couldn't follow the implementation myself).

Steps to reproduce

For example, with the default editor settings, indent some line with 4 spaces. Auto Indent [Ctrl-i] inserts 2 TABs, Convert Indent to Tabs inserts 1 TAB.

Minimal reproduction project

See also fix indentation in script templates.

[AThousandShips]

Will have to dig into the code tomorrow but what it should do is call CodeEdit::convert_indent IMO, that's what's done on save, but will have to see

Edit: Auto indent does more than this so will need more investigation, will see

[AThousandShips]

Note that Auto Indent is not the same as those two other functions, it corrects indentation and should do things like:

if foo:
        bar()

to:

if foo:
    bar()

So this is much more complex and also only affects selection I believe