Add sponsor tile to firmware flashing tab

[blckmn]

Still need to finalise the Html:

1. To centre the images,
2. Add a title "our sponsors" or similar.

Note the above is independent of this PR (as it is loaded into the API).

[blckmn]

AUTOMERGE: (FAIL)

• github identifies PR as mergeable -> FAIL
• assigned to a milestone -> PASS
• cooling off period lapsed -> PASS
• commit count less or equal to three -> PASS
• Don't merge label NOT found -> PASS
• at least one RN: label found -> PASS
• Tested label found -> FAIL
• assigned to an approver -> PASS
• approver count at least three -> FAIL

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.9% Duplication

[github-actions]

Do you want to test this code? Here you have an automated build:
Betaflight-Configurator-Android
Betaflight-Configurator-Linux
Betaflight-Configurator-macOS
Betaflight-Configurator-Windows
WARNING: It may be unstable and result in corrupted configurations or data loss. Use only for testing!

[sugaarK]

I can see the window for the sponser bar.. what do we need to do to get it working @blckmn

[blckmn]

I can see the window for the sponser bar.. what do we need to do to get it working @blckmn

Some html tidy up :) possibly detection between dark and light mode... not sure if we should do that in the app or API...

[TheIsotopes]

@blckmn @haslinghuis I don't think this was intentional. Can someone please change this.

[haslinghuis]

Oops this was not intentional.

[KarateBrot]

Why did you guys just approve and merge the PR? Guys, please think and check before you approve. The PR wasn't even ready yet but you approved and merged immediately 😅

[TheIsotopes]

working now ... thx @haslinghuis