Migrating some files from javascript to typescript (#24663)

* Migrating some files to typescript

* Some other files migrated

* Migrating more javascript to typescript

* Migrating more javascript to typescript

* Fixing types

* Fixing linter errors

* Fixing some imports

* Fixing linter errors

* Renaming the snapshots

* Addressing PR review comments

webapp/channels/src/components/integrations/commands_container/commands_container.tsx

@@ -72,7 +72,7 @@ type Props = {
         /**
          * The function to call to fetch team commands
          */
-        loadCommandsAndProfilesForTeam: (teamId?: string) => any; // TechDebt-TODO: This needs to be changed to 'Promise<void>'
+        loadCommandsAndProfilesForTeam: (teamId: string) => any; // TechDebt-TODO: This needs to be changed to 'Promise<void>'
     };
 
     /**
@@ -95,7 +95,7 @@ export default class CommandsContainer extends React.PureComponent<Props, State>
 
     componentDidMount() {
         if (this.props.enableCommands) {
-            this.props.actions.loadCommandsAndProfilesForTeam(this.props.team?.id).then(
+            this.props.actions.loadCommandsAndProfilesForTeam(this.props.team?.id || '').then(
                 () => this.setState({loading: false}),
             );
         }

webapp/channels/src/components/integrations/installed_incoming_webhooks/index.ts

@@ -17,7 +17,7 @@ import {getCurrentTeamId} from 'mattermost-redux/selectors/entities/teams';
 import {getUsers} from 'mattermost-redux/selectors/entities/users';
 import type {ActionResult, GenericAction} from 'mattermost-redux/types/actions';
 
-import {loadIncomingHooksAndProfilesForTeam} from 'actions/integration_actions.jsx';
+import {loadIncomingHooksAndProfilesForTeam} from 'actions/integration_actions';
 
 import InstalledIncomingWebhooks from './installed_incoming_webhooks';