feat: add css override support to the existing theme support #1015

Job	Run time
Current Information	16s
Build CLI — Standalone linux-x64 (Daily)	1m 30s
Build CLI — Standalone linux-arm64 (Daily)	1m 28s
Build Docker Image - amd64 (Daily)	1m 17s
Build CLI — Framework linux-x64 (Daily)	1m 23s
Build Tray Service Standalone (Daily)	6m 33s
Build Docker Image - arm64 (Daily)	2m 16s
Build Tray Service Framework (Daily)	4m 6s
Push combined tag for both docker images	5s
Upload version info to Sentry.io	9s
Send notifications about the new daily build	2s
	19m 5s

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