Upgrade to symfony 5.3

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Fix task edition page

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Update font

Use main tag instead of div with a class

Delete useless alert area div

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When adding a task to an activity, the actor is set by default with the activity one

Show only active followed task on home page

Canceled status is not considered as "closed" in filters

Fix task deletion after activity deletion

update page layout

Fix cards

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Add canceled status

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Reditect to activity after creating one

Move columns in activity table

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Add unassigned filter to activities

Fix activity filter does not shows unassigned activities

Fix doctrine deprecation

Add licence

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Smaller text in table header