Persistent filter feature

[HarshitDhaduk]

Used el-tag component from element-plus to make a custom tag renderer to disable close functionality (clossable tag) when a single namespace page is selected.

This is the custom-tag renderer component:

        <template #tag="{current}">
            <el-tag
                :disable-transitions="true"
                :closable="!current?.persistent" 
                @close="() => removeItem(current)"
            >
                <Label :option="current" /> 
            </el-tag>
        </template>

In removeItem function, If value passed is persistent=true. The function will return null without removing any item.