Added a button for adding or deleting a section in resume from UI itself.

[Anurag519Narula]

References to other Issues or PRs or Relevant literature

Brief description of what is fixed or changed

Other comments

[Anurag519Narula]

@Kishan-Ved please have a look. Merge the PR if you feel everything is right. Thanks!

[Kishan-Ved]

We already have a checkbox to add or remove the internships section. Let's keep it consistant throughout for all sections. Please add checkboxes for every section, rather than these buttons:

[Anurag519Narula]

Hi @Kishan-Ved , please have a look now, I have made changes and have done the deleting and adding section by a checkbox

[Anurag519Narula]

Hi @Kishan-Ved please merge.

[Kishan-Ved]

Uncheck skills and copy the latex code, it still shows skills in the latex pdf. This is a bug, check for similar bugs.

[Anurag519Narula]

Hi @Kishan-Ved , have fixed the bug and checked, everything is working fine, please have a look. Thanks!

[Anurag519Narula]

Hi @Kishan-Ved , is everything working fine?

[Kishan-Ved]

Add some content in all sections (remember to click on Add This), now uncheck all of them, the Latex code is correct, but the preview still shows the entered data. Please fix this. Also, upon unchecking the internships' checkbox, the header still remains in the preview.

Another bug: Add some data to internships, click on add this. Now, uncheck the checkbox. The data remains in the preview.