feat(Live.TripPlanner): support /from and /to shortcuts #5590

Job	Run time
file_changes	4s
Build application and assets	5m 50s
Build Docker image	6m 56s
Linting / TypeScript	46s
Linting / Elixir	3m 33s
Linting / JavaScript	22s
Linting / CSS	24s
Formatting / Elixir	3m 10s
Formatting / JavaScript & TypeScript	28s
Unit tests / JavaScript / Mocha	36s
Unit tests / JavaScript & TypeScript / Jest	2m 10s
Type checks / Elixir	3m 59s
Type checks / TypeScript	32s
Unit tests / Elixir / mix coveralls.html	1m 8s
	29m 58s

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