Tweak/homogenize logo

What does this MR do and why?

Noticed that all logos are slightly different from logo_long.svg, so I recreated all icons using the logo_long.svg file.

For this comparison I'll be referring to the logos with current, new and full respectively.
Due to the full logo being the only occurrence of the logo in SVG form I made the assumption that it is the correct one.

The differences between the new and current logo:

• colors are slightly different
• current logo is slightly off center
• roundness on the horizontal bar is different

colors current:

• left C 31CB99
• right C 00CEFF
• middle bar 924DF5

colors new and full

• left C 2FB689
• right C 01B7E4
• middle bar 8743DF

Screenshots or screen recordings

current top half /\, new bottom half \/

full

How to set up and validate locally

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• Have you checked this doesn't interfere/conflict/duplicate someone elses work?
• Have you fully tested your changes? (no code changed)
• Have you resolved any lint issues? (no code changed)
• Have you assigned a reviewer?
• Have you applied correct labels?