cleaning up sidebar, adding GitHub link

app/app.py

@@ -57,13 +57,12 @@ st.markdown(
     <style>
         /* Customizing font size for radio text */
         div[class*="stRadio"] > label > div[data-testid="stMarkdownContainer"] > p {
-            font-size: 18px;
+            font-size: 18px !important;
         }
         /* Reduce margin below the header */
         h2 {
             margin-top: 0rem !important; 
             margin-bottom: 0rem !important; /* Reduce space below headers */
-
         }
         /* Customizing font size for medium-font class */
         .medium-font {
@@ -72,7 +71,8 @@ st.markdown(
             margin-bottom: 0.25rem !important; /* Reduce space below */
         }
         .medium-font-sidebar {
-            font-size: 18px; 
+            font-size: 17px !important;
+            margin-bottom: 0.75rem !important; /* Reduce space below */
         }
         /* Customizing layout and divider */
         hr {
@@ -409,7 +409,12 @@ with st.sidebar:
             filter_cols = []
             filter_vals = []
 
-    
+    st.divider()
+    st.markdown("""
+    <p class="medium-font-sidebar">
+    <svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' class='bi bi-github ' style='height:1em;width:1em;fill:currentColor;vertical-align:-0.125em;margin-right:4px;'  aria-hidden='true' role='img'><path d='M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.012 8.012 0 0 0 16 8c0-4.42-3.58-8-8-8z'></path></svg>Source Code: </p> <a href='https://github.com/boettiger-lab/ca-30x30' target='_blank'>https://github.com/boettiger-lab/ca-30x30</a>
+    """, unsafe_allow_html=True)# adding github logo 
+
 # Display CA 30x30 Data
 if 'out' not in locals():
     style = get_pmtiles_style(style_options[color_choice], alpha, filter_cols, filter_vals)