Fixed Crusade card background color

Bugfixes:
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- fixed an issue where some normally-formatted models were being caught by special cases that they shouldnt be caught by (in this case wraithguard being caught by the space marine bike special case)
- rewrote how units show their UI to now be backwards compatible and also more future-proof

QoL:
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- added a more helpful error for when the entered code doesn't have the right amount of digits

Added some code to hopefully output more detailed bug info rather than just "something went horribly wrong"

accidentally uploaded a debug version in the previous patch which broke everything (someday ill learn to stop doing that)

Bugfix:
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- fixed an issue where yellowscribe wouldnt even recognize a unit as such because of how strangely a data creator formatted the data (dear data creator: why did you bury a model profile as the only hint that its a unit under three layers of "upgrades"?)
- fixed some issues with the UI that were introduced with the change to how windows are opened
- fixed an issue where TTS was going crazy and filling its xml buffer with empty spaces every time the global UI was reloaded


QoL:
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- added the ability for multiple different windows to be open at the same time (including different players having different windows open at the same time)
- PLEASE NOTE: there are some issues that you may run into in this that cannot be fixed because of limitations in TTS itself. these include:
- every time a player opens a window, all windows blink and are reset
- scrollbars will always reset when a window is opened
- windows that have been dragged will reset to the center of the screen when a new window is opened
- the latest window to be shown will always be shown over windows opened earlier
- as a consequence of the above, Yellowscribe should now play much more nicely with other UI
- deferred some UI building until the ui for a unit is opened for the first time, which might help spawn armies faster

Updated the welcome screen:
- changed the name to Yellowscribe
- removed old shortened url and replaced with shiny new official url

Bugfixes:
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- fixed an issue where certain models (eg centurions) would fail to choose the right name when parsing
- added a special case for strangely formatted Knight warlord traits
- fixed an issue where using a previously yellowscribed model as the model for another yellowscribing keept the original model's crusade data instead of clearing it

QOL:
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- added better error handling for expired rosters on the back and front ends

Some changes to the mod to allow for website rewrite. Not much to see here.