v2.0.0-rc.7

Commits

• [30a4dbe]: Improve performance on setting -1 to question.visibleIndex (#9501) (Andrew) #9501
• [43ea9be]: work for the surveyjs/survey-creator#6553 (#9499) (Dmitry Kurmanov) #9499
• [3aca390]: Add isExecutingOnNavigation property into trigger fix #9483 (#9488) (Andrew) #9488
• [4d5571d]: Performance toJSON() optimization (#9504) (Andrew) #9504
• [51dc9b5]: Rename SurveyThemes -> SurveyTheme (#9507) (Dmitry) #9507
• [1317c34]: "C" typo (#9508) (Dmitry Kurmanov) #9508
• [79f6eea]: Do not use global getLocaleString in SurveyError classes (Andrew Telnov)
• [6e8cdcd]: One question per page & first page is started doesn't work correctly fix #9510 (#9512) (Andrew) #9512
• [9bb0a1e]: Work for https://github.com/surveyjs/private-tasks/issues/469 - Advanced/Basic Header (#9495) (tsv2013) #9495
• 2.0.0-rc.7 [azurepipelines skip] (surveyjsdeveloper)
• 2.0.0-rc.7 [azurepipelines skip] (surveyjsdeveloper)