Android lists files in a case sensitive way

I noticed in the Android app that first lists folders, followed by files, but within that first comes capitalized folders, followed by uncapitalized folders, then capitalized files, then uncapitalized files.

If a folder contained the following contents (2 folders, 4 files):

```
MyFolder
anotherfolder
A
b
C
d
```

Then I would expect the order to be alphabetical regardless of case:

```
anotherfolder
MyFolder
A
b
C
d
```

But what I see in the app would be:

```
MyFolder
anotherFolder
A
C
b
d
```

I panicked just now by looking for a lowercase filename amongst the capital files before I realized this sorting pattern. If I was looking in the above folders/files for the file `b` then I would believe it doesn't exist if it's not between `A` and `C`.

The issue names the Android app but no source file, test, or entry point. Start by locating the Android directory-listing sorting code, reproduce the mixed-case ordering shown, and consider the work done when folders and files each sort alphabetically without case grouping.

Written by the indexing model from the issue text.