change the logic of show more from number of lines to number characters #29719

Job	Run time
EVM Devnet Tests (22)	2m 5s
Commonwealth Integration Tests (22)	6m 21s
Code Quality Recommendations (22)	51s
Commonwealth Unit Tests (22)	5m 29s
Detect Broken TS expect errors (22)	2m 26s
Code Quality checks (22)	5m 58s
Commonwealth Mature E2E Tests (22)	4m 2s
Commonwealth E2E Tests (22)	9m 42s
Commonwealth E2E Tests Serial (22)	4m 35s
Upload Test Coverage Report (22)	5s
	41m 34s

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