Imio-pm-locales

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- Accurate french translation for `Position type to use as label for the signature.`.
[gbastien]

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- Added translations regarding being able to define a `position_type`
while redefining a signatory on an item.
[gbastien]
- Added translation for warning message displayed when an item could not be
presented using the `present-several-items` view.
[gbastien]
- Added translations for dashboard header title help messages.
[gbastien]

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- Reworked `Return to proposing group` related translations.
[gbastien]
- Added translations for `DX quick edit` related functionnality.
[gbastien]
- Added translations for `votes` functionnality.
[gbastien]
- Added translations for `committeeObservations/votesObservations`
`Meeting/MeetingItem` fields.
[gbastien]
- Translate `MeetingCategory` in `PloneMeeting` domain.
[gbastien]
- Added translation for message displayed on over of redefined
signatory on meeting or item.
[gbastien]
- Added translations for MeetingConfig field `itemsVisibleFields`,
`itemsNotViewableVisibleFields` and `itemsNotViewableVisibleFieldsTALExpr`.
[gbastien]

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- Added translations for email notifications `itemPresentedOwner`,
`itemUnpresentedOwner`, `itemDelayedOwner` and `returnedToProposingGroupOwner`.
[gbastien]

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- Better french translation for `only_for_meeting_managers_descr`.
- Adapted translations regarding message displayed in Plone users and groups management
as we greyed actions Remove user/Remove group.
- Adapted french translation of `meetingconfig_display_groups_and_users_descr`.
- Added translations for `MeetingConfig.keepAccessToItemWhenAdvice` related functionnality.
- Added translation for `Currently selected meeting config`.

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- Added translation for `empty_annex_file_content`.
- Fixed french translations, replace translation `donneur` by `émetteur` everywhere.
- Added translation for `stored_single_item_template_as_annex`.
- Added translations for `held_position.represented_organizations` related functionnality.
- Added translations for meeting attendees validation error message.
- Added translations for `waiting_advices` item WF prettylink icon down/up WF.
- Added translations for new fields `MeetingItem.decisionEnd`,
`MeetingItem.meetingManagersNotesSuite`, `MeetingItem.meetingManagersNotesEnd` and
`MeetingItem.otherMeetingConfigsClonableToFieldDecisionEnd`.
- Added translations for `waiting_advices` complementary WFAdaptations.