Fix #13 find keyword in dataset button in dataset details page

[harikiranrommala]

Add a search bar to search for keywords in dataset level page that allows users to search any key words in the dataset.
Users can:

1. Search for keywords by typing them in Search box "Find keyword in dataset"
2. Next to the search bar there is a clickable button "Find Next" to got to the next place where this keyword is present

This helps users to search for the specific key words they needed

Tasks:

• Add the functionality of search bar "Find keyword in dataset" to top right corner
• Add "Find Next" clickable button next to search bar

Acceptance criteria:

• Users should be able to find their required keyword and those words should be highlighted in color for visual experience