refactor(gui-v2): type correction and null check

- input value can be null as well

Signed-off-by: Pranav C <pranavxc@gmail.com>

packages/nc-gui-v2/components/cell/Decimal.vue

@@ -2,7 +2,7 @@
 import { computed, inject, onMounted, ref } from '#imports'
 
 interface Props {
-  modelValue: number
+  modelValue: number | null
 }
 
 interface Emits {

packages/nc-gui-v2/components/cell/Integer.vue

@@ -3,7 +3,7 @@ import { inject, ref, useVModel } from '#imports'
 import { EditModeInj } from '~/context'
 
 interface Props {
-  modelValue: number
+  modelValue: number | null
 }
 
 interface Emits {

packages/nc-gui-v2/components/cell/Text.vue

@@ -3,7 +3,7 @@ import { inject, ref, useVModel } from '#imports'
 import { EditModeInj } from '~/context'
 
 interface Props {
-  modelValue: string
+  modelValue: string | null
 }
 
 const props = defineProps<Props>()

packages/nc-gui-v2/components/cell/TextArea.vue

@@ -3,7 +3,7 @@ import { inject, ref, useVModel } from '#imports'
 import { EditModeInj } from '~/context'
 
 interface Props {
-  modelValue?: string
+  modelValue: string | null
 }
 
 const props = defineProps<Props>()

packages/nc-gui-v2/composables/useViewColumns.ts

@@ -83,7 +83,7 @@ export function useViewColumns(
 
   const metaColumnById = computed(() => {
     return (
-      meta.value.columns?.reduce<Record<string, ColumnType>>((acc, curr) => {
+      meta.value?.columns?.reduce<Record<string, ColumnType>>((acc, curr) => {
         return {
           ...acc,
           [curr.id!]: curr,