front: remove unused store variables

[nicolaswurtz]

Description

Some store variable are unused, they should be removed or moved to another reducer.

• harmonize the sub-reducers (remove the types in PowerRestrictionsReducer...)
• move all the types in the types file (especially OperationalStudiesConfState)
• export the specific selectors or actions of each part of the store to avoid casting useOsrdConfActions() as StdcmConfSliceActions or useOsrdConfSelectors() as StdcmConfSelectors

Variables to remove:

• osrdsimulation
  • redirectToGraph
  • mustRedraw
  • signalBase

Variables to move to another reducer:

• osrdConfCommon -> operationalStudiesConf
  • labels
  • allowances
  • trainCount
  • trainDelta
  • trainStep
  • usingElectricalProfiles
  • powerRestrictionRanges
  • initialSpeed
• osrdConfCommon -> stdcmConf
  • gridMarginBefore
  • gridMarginAfter
  • originUpperBoundDate
  • originUpperBoundTime
  • originLinkedBounds
  • destinationDate
  • destinationTime

AC & Implementation plan

• the store is smaller and cleaner

[clarani]

I also add some new tasks related to this refacto:

• harmonize the sub-reducers (remove the types in PowerRestrictionsReducer...)
• move all the types in the types file (especially OperationalStudiesConfState)
• export the specific selectors or actions of each part of the store to avoid casting useOsrdConfActions() as StdcmConfSliceActions or useOsrdConfSelectors() as StdcmConfSelectors