It's back online. Thank you for your time and help

In the ouput I see disk1 has all the contents which is shown in the image from the question as disk0

Now what do I do?

@DavidAnderson the output is added it to the question.

Output of gpt -r show /dev/disk0 : ` start size index contents 0 1 PMBR 1 1 Pri GPT header 2 32 Pri GPT header 34 6 40 3932000 1 GPT part - 4846465300-0000-11AA-AA11-00306543ECAC 3932040 262151 4194191 32 Sec GPT table 4194223 1 Sec GPT header `

I was able to get gpt -f remove -i 2 disk0 but when I do gpt -f add -i 2 -b 409640 -s 343340696 -t apfs disk0 get an error saying gpt add: disk0: error: no space available on the device`

I get this error: gpt: illegal option -- f when I do gpt -f remove -i 2 disk0

I haven't restarted my Macbook. I am afraid doing so will lock me out of the operating system. Will it affect data on my primary partition?

I get this : Partition Offset: 209735680 Bytes (409640 512-Byte-Device-Blocks) Disk Size: 175.8 GB (175790436352 Bytes) (exactly 343340696 512-Byte-Units) Device Block Size: 512 Bytes