add form buttons icons, closes #821 (#1210) #2201

Job	Run time
test (mssql, mssql, mssql://root:Password123!@127.0.0.1/sqlpage)	1m 38s
docker_build (linux/arm64, minimal)	5m 58s
docker_build (linux/amd64, duckdb)	5m 13s
docker_build (linux/arm/v7, minimal)	5m 23s
windows_test	2m 51s
test (postgres, postgres, postgres://root:Password123!@127.0.0.1/sqlpage)	2m 21s
docker_build (linux/arm64, duckdb)	5m 54s
docker_build (linux/amd64, minimal)	5m 21s
compile_and_lint	1m 27s
test (mysql, mysql, mysql://root:Password123!@127.0.0.1/sqlpage)	1m 19s
test (oracle, oracle, Driver=Oracle 21 ODBC driver;Dbq=//127.0.0.1:1521/FREEPDB1;Uid=root;Pwd=Pas...	2m 39s
test (odbc, postgres, Driver=PostgreSQL Unicode;Server=127.0.0.1;Port=5432;Database=sqlpage;UID=r...	2m 10s
docker_push (duckdb)	18s
docker_push (minimal)	13s
	42m 45s

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