chore(bw): tidy up Radio Setup menu

[philmoz]

Summary of changes:

• Indent the 'Mode' label in the 'Sound' section.
• Move the 'Contrast' setting to be directly under the 'Brightness' setting in the 'Backlight section'.
• Indent the 'Contrast setting.

[inventor7777]

Very nice!

[3djc]

I think we should move away from the indent been part of the translation string and use INDENT_WIDTH or similar in lcdDrawText() instead. It helps a lot when you have to resue that word

[philmoz]

I think we should move away from the indent been part of the translation string and use INDENT_WIDTH or similar in lcdDrawText() instead. It helps a lot when you have to resue that word

I've cleaned up the usage of the INDENT macro in the code and replaced it with INDENT_WIDTH.
Cleaning up all the translation strings is a big job and probably something for another PR.

[3djc]

Clearly, one step at a time!

[pfeerick]

GRAPHICS was another 9x legacy define... so good riddance!

[pfeerick]

LGTM also. Nice to see the GPS header for those options, as well as optimisation of some of the translation helper code. I noticed while reviewing that the "Default channel order" parameter was out of alignment (and has been for a while) by one character so fixed that also.