change the logic of show more from number of lines to number characters #29720

Job	Run time
Commonwealth Mature E2E Tests (22)	4m 14s
Commonwealth E2E Tests (22)	9m 30s
Code Quality checks (22)	6m 9s
Commonwealth Integration Tests (22)	6m 26s
Detect Broken TS expect errors (22)	2m 24s
Commonwealth E2E Tests Serial (22)	4m 32s
Code Quality Recommendations (22)	52s
EVM Devnet Tests (22)	1m 59s
Commonwealth Unit Tests (22)	5m 25s
Upload Test Coverage Report (22)	3s
	41m 34s

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