fix(fma): continuation of presel text fix

[BravoMike99]

Fixes #8217

Summary of Changes

This PR adds ":" to the SPEED SEL and MACH SEL text and slightly adjusts their position(continuation of #8230).

Screenshots (if necessary)

Left side is after while right side is before.

References

Provided in #8230

Additional context

I had to map the "|" character to a bottom ":" character in the font file considering it is shared between multiple displays. Since the preselect ":" is aligned to the bottom, using the existing ":" would not work.

Discord username (if different from GitHub):
bruno_pt99

Testing instructions

Preselect a speed in the PERF CLB page (before takeoff). Make sure speed sel shows on the FMA with the ":" (if A/B is armed, it will only show after A/B message disappears).
Preselect a mach speed in the PERF CRZ page. Once climb phase is active make sure mach sel shows on the FMA with the ":".

How to download the PR for QA

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[tracernz]

Just a small formatting fix.

[lukecologne]

Hm, not sure if we need a new character in the font for this. From the refs for example here it looks like it could simply be a smaller font size compared to the rest? Also, is it strictly necessary to have the two different text fields? Seems unnecessarily complicated to me

[tracernz]

The vertical alignment of the : relative to the baseline is very different to what's currently in the font.

[BravoMike99]

I made the split into two different text fields just to be able to manipulate the spacing between the presel text and preselected value since it was one of the suggestions of improvement in the other PR and seems to differ IRL between the MACH SEL and SPEED SEL. This is how the spacing looks on a single text element (ignore the : , used master branch).

[lukecologne]

Is the spacing really different between SPEED and MACH SEL? I assume you used the pictures from shomas from the original PR
(Pictures here side by side for convenience)

Header	Header

The space in the MACH SEL is very obvious of course, but I'm pretty sure I see it in the SPEED SEL too (you have to compare either both the leftmost or rightmost edges of the blur).

You're right about the colon, it's weird that the alignment is so different... Although if you're splitting the text fields anyways it might be easier to just add a third text field just for the colon, and move that downwards, instead of doing a whole new character in the font

[BravoMike99]

Yeah I used shomas pics and maybe I wasn't clear enough, i meant the space/gap after the ":" which seems to be smaller in the SPEED SEL case. Regarding the colon, I can add a third element if that's preferable

[lukecologne]

I don't know if that's preferable, just giving alternatives

[Popespice]

Quality Assurance Trainee Report

Discord : popespice
Object of testing: (#PR 8230/8328)
Tier of Testing : (1)
Date : (04/01/2024)

Testing Process:
Downloaded PR build
Planned short flight
Adjusted flight parameters in-flight (specifically speed and mach)
Observed aircraft and FMC behaved as expected,

Negatives:
N/A

Testing Results:
Passed

Conclusions:
Aircraft and system behaving as expected.