[PlatformAdmin] Fix polling stations validation on edit (#892)

* fix: make dropdown menus scrollable

* fix: truncate overflowing table columns

* Squashed commit of the following:

commit 742f250
Author: imdeaconu <imdeaconu@gmail.com>
Date:   Wed Sep 11 19:54:55 2024 +0300

    add read notification checkmark

commit ea11fa0
Author: imdeaconu <imdeaconu@gmail.com>
Date:   Wed Sep 11 19:54:30 2024 +0300

    add read notification column

* Squashed commit of the following:

commit d8833dc
Author: imdeaconu <imdeaconu@gmail.com>
Date:   Fri Sep 13 13:29:31 2024 +0300

    WIP: add selector functionality

commit 3608c0e
Author: imdeaconu <imdeaconu@gmail.com>
Date:   Fri Sep 13 10:00:05 2024 +0300

    WIP: create new tags input

* chore: remove unused import

* chore: delete duplicated / unused classes

* feature: add searching to MonitoringObserversTagFilter

* chore: update config files

* Revert "[NGO Admin] Rewrite the tag selector component  (#675)"

This reverts commit 2ad0e90.

* Merge branch 'main' of https://github.com/commitglobal/votemonitor into commitglobal-main

* WIP: rename prop for alternative filter key in Observer Tags and add it to the Push Message form

* WIP: fix push messages receipients query not invalidating after edits

* invalidate targeted observers query after a morning observer is added

* fix validation error when editing polling stations that have less than 5 levels

Author: imdeaconu

web/src/common/types.ts

@@ -312,11 +312,10 @@ export const importPollingStationSchema = z
   .object({
     id: z.string().default(() => crypto.randomUUID()),
     level1: z.string().min(1, 'Level 1 is required'),
-    level2: z.string().optional(),
-    level3: z.string().optional(),
-    level4: z.string().optional(),
-    level5: z.string().optional(),
-
+    level2: z.string().optional().catch(''),
+    level3: z.string().optional().catch(''),
+    level4: z.string().optional().catch(''),
+    level5: z.string().optional().catch(''),
     address: z.string().min(1, 'Address is required'),
     number: z.string().min(1, 'Number is required'),
     displayOrder: z.coerce.number().catch(0),