[BREAKING_CHANGE_DASHBOARDS][DASHBOARD_CACHE_FLUSH_REQUIRED] Refactor page layout widget configuration type (#16671)

# Introduction
In this pull-request we're refactoring the page layout widget
configuration entity to be containing its discriminated key simplifying
underlying code and maintainability
- Made the configuration and title non nullable
- Introduced a generic predicate for the `widgetConfigurationType`
- Upgraded command to remove `graphType` and insert new
`configurationType` to existing entries
- Migrated frontend to new type system

---------

Co-authored-by: bosiraphael <raphael.bosi@gmail.com>
Co-authored-by: Raphaël Bosi <71827178+bosiraphael@users.noreply.github.com>

packages/twenty-server/src/database/commands/upgrade-version-command/upgrade.command.ts

@@ -19,6 +19,7 @@ import { UpdateRoleTargetsUniqueConstraintMigrationCommand } from 'src/database/
 import { DeleteRemovedAgentsCommand } from 'src/database/commands/upgrade-version-command/1-14/1-14-delete-removed-agents.command';
 import { UpdateCreatedByEnumCommand } from 'src/database/commands/upgrade-version-command/1-14/1-14-update-created-by-enum.command';
 import { FixNanPositionValuesInNotesCommand } from 'src/database/commands/upgrade-version-command/1-15/1-15-fix-nan-position-values-in-notes.command';
+import { MigratePageLayoutWidgetConfigurationCommand } from 'src/database/commands/upgrade-version-command/1-15/1-15-migrate-page-layout-widget-configuration.command';
 import { TwentyConfigService } from 'src/engine/core-modules/twenty-config/twenty-config.service';
 import { WorkspaceEntity } from 'src/engine/core-modules/workspace/workspace.entity';
 import { DataSourceService } from 'src/engine/metadata-modules/data-source/data-source.service';
@@ -52,6 +53,7 @@ export class UpgradeCommand extends UpgradeCommandRunner {
     protected readonly deleteRemovedAgentsCommand: DeleteRemovedAgentsCommand,
 
     // 1.15 Commands
+    protected readonly migratePageLayoutWidgetConfigurationCommand: MigratePageLayoutWidgetConfigurationCommand,
     protected readonly fixNanPositionValuesInNotesCommand: FixNanPositionValuesInNotesCommand,
   ) {
     super(
@@ -80,6 +82,7 @@ export class UpgradeCommand extends UpgradeCommandRunner {
     ];
 
     const commands_1150: VersionCommands = [
+      this.migratePageLayoutWidgetConfigurationCommand,
       this.fixNanPositionValuesInNotesCommand,
     ];