build(deps): update ReactiveUI.XamForms requirement from 17.* to 18.* in /src

[dependabot[bot]]

Updates the requirements on ReactiveUI.XamForms to permit the latest version.

Release notes

Sourced from ReactiveUI.XamForms's releases.

18.0.7

Dependencies:

• 6e227fbd4d629a38ff05ebd4f77518db506c1832 build(deps): bump Acr.UserDialogs in /integrationtests (#3239) @​dependabot[bot]
• cfca6f2f0f7a9eb6d5768d0d5a433e6df808bfc1 build(deps): bump FluentAssertions in /integrationtests (#3240) @​dependabot[bot]

Fixes:

• 65105e5d511bbbafeaac3575aadbb52c593a886a Fix Ensure the appState is loaded only once and GetAppState always returns (#3193) @​tomasfil

Commits

• cfca6f2 build(deps): bump FluentAssertions in /integrationtests (#3240)
• 6e227fb build(deps): bump Acr.UserDialogs in /integrationtests (#3239)
• 65105e5 Fix Ensure the appState is loaded only once and GetAppState always returns (#...
• db2ce5c build(deps): bump stylecop.analyzers in /integrationtests (#3220)
• 14d40da build(deps): bump Microsoft.NET.Test.Sdk in /integrationtests (#3199)
• 267adda build(deps): bump Roslynator.Analyzers in /integrationtests (#3216)
• 5c79cd5 housekeeping: Bump version number
• a2d3394 fix: Remove UnoUI to its own repo and fix macos, maccatalyst builds and maui ...
• 8628353 housekeeping: Update dependencies (#3188)
• e320a26 build(deps): bump FluentAssertions from 6.5.0 to 6.5.1 in /src (#3185)
• Additional commits viewable in compare view

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