setup / refactoring / unit-tests / bug fixes / features

[LuccaHellriegel]

setup

• npm setup with parcel as bundler and jest as testing framework: allows to include future packages, unit-testing and splitting the code into modules
• added build and test commands to npm config

refactoring

• split main code sections into modules
• split up / extracted / renamed tons of functions for easier reusability / readbility / testability
• made the most logic heavy functions mostly pure / removed direct roamsr-object access to allow trivial and mock-free testability / one-way dataflow
• clarified dataflow in some functions to improve understandability
• added status-tracking / minimal "state-machine" to allow a more "reactive" style in the future and make keybindings based on status possible
• changed keybindings to a map-based approach to make future additions trivial
• isolated all roamsr.state-mutations into functions for a better overview of what could change the state / prepare for reactive-refactor

bug fixes

• a card is now only detected as new if it has no review-blocks, not if it has no refs on past daily pages
• edge cases of limit-filtering when we mix multi-deck cards with single-deck cards generally work now (in some cases the limit of the higher deck still wins), added extensive unit-test for the filter-method
• flagCard correctly steps to next card now
• S-key keybinding fix (e1acf6f)
• extraCards are saved correctly (not as arrays) / will be accessed correctly
• sessions only start if the refreshed queue is not empty, counters are updated if the queue is refreshed

features

• "space" = "good" response (trivial via the changed keybinding approach and the status-tracking)
• can configure if left sidebar should be close (Restore left sidebar after review session #32), cant restore because of current Roam-state
• mainTags is now an array / can use multiple main tags (Using just one tag for alternative decks #15) - breaking change for old settings!
• the sorting-order of the presented cards can now be configured

[akrivka]

Closing in favor of #35 (identical PR, just to a different branch)