[feat][Remote objects] Edit a connection (for pg) (#5210)

## Context
#4774 

## How was it tested
Locally

## In further PRs
- Update connection status upon page change
- Adapt Info banner to dark mode
- placeholders for form

packages/twenty-front/src/modules/databases/graphql/fragments/databaseConnectionFragment.ts

@@ -7,6 +7,10 @@ export const DATABASE_CONNECTION_FRAGMENT = gql`
     foreignDataWrapperId
     foreignDataWrapperOptions
     foreignDataWrapperType
+    userMappingOptions {
+      username
+    }
     updatedAt
+    schema
   }
 `;

packages/twenty-front/src/modules/databases/graphql/mutations/updateOneDatabaseConnection.ts

@@ -0,0 +1,12 @@
+import { gql } from '@apollo/client';
+
+import { DATABASE_CONNECTION_FRAGMENT } from '@/databases/graphql/fragments/databaseConnectionFragment';
+
+export const UPDATE_ONE_DATABASE_CONNECTION = gql`
+  ${DATABASE_CONNECTION_FRAGMENT}
+  mutation updateServer($input: UpdateRemoteServerInput!) {
+    updateOneRemoteServer(input: $input) {
+      ...RemoteServerFields
+    }
+  }
+`;

packages/twenty-front/src/modules/databases/hooks/useUpdateOneDatabaseConnection.ts

@@ -0,0 +1,34 @@
+import { ApolloClient, useMutation } from '@apollo/client';
+
+import { UPDATE_ONE_DATABASE_CONNECTION } from '@/databases/graphql/mutations/updateOneDatabaseConnection';
+import { useApolloMetadataClient } from '@/object-metadata/hooks/useApolloMetadataClient';
+import {
+  UpdateRemoteServerInput,
+  UpdateServerMutation,
+  UpdateServerMutationVariables,
+} from '~/generated-metadata/graphql';
+
+export const useUpdateOneDatabaseConnection = () => {
+  const apolloMetadataClient = useApolloMetadataClient();
+
+  const [mutate] = useMutation<
+    UpdateServerMutation,
+    UpdateServerMutationVariables
+  >(UPDATE_ONE_DATABASE_CONNECTION, {
+    client: apolloMetadataClient ?? ({} as ApolloClient<any>),
+  });
+
+  const updateOneDatabaseConnection = async (
+    input: UpdateRemoteServerInput,
+  ) => {
+    return await mutate({
+      variables: {
+        input,
+      },
+    });
+  };
+
+  return {
+    updateOneDatabaseConnection,
+  };
+};