:sparkles: introduced an assets folder for the front end to hold icons and local images

frontend/assets/icons/calendar.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><path d="M19.378,3.822H18.267V6.044H14.933V3.822H8.267V6.044H4.933V3.822H3.822A2.228,2.228,0,0,0,1.6,6.044V19.378A2.228,2.228,0,0,0,3.822,21.6H19.378A2.229,2.229,0,0,0,21.6,19.378V6.044a2.229,2.229,0,0,0-2.222-2.222Zm0,15.556H3.822V10.489H19.378ZM7.711,1.6H5.489V5.489H7.711Zm10,0H15.489V5.489h2.222Z" transform="translate(-1.6 -1.6)" fill="#fff"/></svg>

frontend/assets/icons/chat.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="27.778" height="25" viewBox="0 0 27.778 25"><path d="M8.056,17.156V8.544H2.778A2.786,2.786,0,0,0,0,11.322v8.333a2.786,2.786,0,0,0,2.778,2.778H4.167V26.6l4.167-4.167h6.944a2.786,2.786,0,0,0,2.778-2.778V17.128a1.328,1.328,0,0,1-.278.03l-9.722,0ZM25,1.6H12.5A2.786,2.786,0,0,0,9.722,4.378V15.489h9.722l4.167,4.167V15.489H25a2.785,2.785,0,0,0,2.778-2.778V4.378A2.786,2.786,0,0,0,25,1.6Z" transform="translate(0 -1.6)" fill="#fff"/></svg>

frontend/assets/icons/close-icon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="17.414" height="17.414" viewBox="0 0 17.414 17.414"><g transform="translate(0.707 0.707)"><line x1="16" y1="16" fill="none" stroke="#fff" stroke-linecap="round" stroke-miterlimit="10" stroke-width="1"/><line y1="16" x2="16" fill="none" stroke="#fff" stroke-linecap="round" stroke-miterlimit="10" stroke-width="1"/></g></svg>

frontend/assets/icons/options-icon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="19" height="5" viewBox="0 0 19 5"><g fill="none" stroke="#fff" stroke-width="1"><circle cx="2.5" cy="2.5" r="2.5" stroke="none"/><circle cx="2.5" cy="2.5" r="2" fill="none"/></g><g transform="translate(7)" fill="none" stroke="#fff" stroke-width="1"><circle cx="2.5" cy="2.5" r="2.5" stroke="none"/><circle cx="2.5" cy="2.5" r="2" fill="none"/></g><g transform="translate(14)" fill="none" stroke="#fff" stroke-width="1"><circle cx="2.5" cy="2.5" r="2.5" stroke="none"/><circle cx="2.5" cy="2.5" r="2" fill="none"/></g></svg>