Items with type topup have a price = null and hence not even the property set (ignored in JSON). This needs to be handled in the temlate, otherwise this exception occurs:
```
An unhandled exception was thrown by the application.
System.InvalidOperationException: Nullable object must have a value.
at AspNetCoreGeneratedDocument.Views_Shared_Crowdfund_Public_ContributeForm.<>c__DisplayClass24_0.<<ExecuteAsync>b__0>d.MoveNext()
```
* Plugins can now build apps
* fix tests
* fixup
* pluginize existing apps
* Test fixes part 1
* Test fixes part 2
* Fix Crowdfund namespace
* Syntax
* More namespace fixes
* Markup
* Test fix
* upstream fixes
* Add plugin icon
* Fix nullable build warnings
* allow pre popualting app creation
* Fixes after merge
* Make link methods async
* Use AppData as parameter for ConfigureLink
* GetApps by AppType
* Use ConfigureLink on dashboard
* Rename method
* Add properties to indicate stats support
* Property updates
* Test fixes
* Clean up imports
* Fixes after merge
---------
Co-authored-by: Dennis Reimann <mail@dennisreimann.de>
* Checkout v2: Minor copy change
* Allow copying of invoice ID and order ID on results page
* Add copy icons for payment details on results view
* Add missing powered by class to store footers
* Crowdfund: View updates
Improve store branding and remove the card styles, because they had borders which seemed like visual clutter. Other than that I made some changes to the header section and cleaned up the markup and indentation.
* adds column spacing + details header
* Move the Featured Image input
* Center align the Last Updated
* Remove store header, update header section
* Bump description font size
* Improve perk display
* Improve details section
* Fix main image display
---------
Co-authored-by: dstrukt <gfxdsign@gmail.com>
* Update some buttons
* Potential flaky test fix
* Dark theme: Fix primary accent color
* Pay Button: Remove unused clipboard dependency
The pay button uses the cope-to-clipboard.js
* Remove babel-polyfill
Browser-support should be good by now.
* Remove unused jquery-easing scripts
* Remove unused CSS
Removes the current value on focus, so that the user gets to see the available options. If no selection or change is made, the value is reset to the previous value on blur.
Closes#4154.
