add simple webapp to record working hours

Makefile

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+all:
+	streamlit run app.py

app.py

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+import streamlit as st
+from uoh_software_project_time_report.project import *
+
+GSHEET_URL = "https://docs.google.com/spreadsheets/d/1DNoNf4glcuMxKoVzHVrFo-MktmsVji1wf4IHeraWH84/edit?usp=sharing"
+
+st.set_page_config(page_title="Project Time report", layout="centered")
+
+st.write('XXXXX Add dash board with KPI panels here! (e.g. total time spent, remaining time, velocity, e.t.c)')
+
+st.title("Project Time report!")
+
+pr = Project('keys.json')
+
+
+form = st.form(key="annotation")
+with form:
+    cols = st.columns((1, 1))
+    author = cols[0].selectbox(
+        "Name:", ["",
+                  "Arttu I Lehtonen",
+                  "Borna Jamali",
+                  "Leevi J A Takala",
+                  "Matias Tolppanen",
+                  "Nella T Nieminen",
+                  "Tuula Jakobsson Peralta",
+                  "Machihito Mizutani",
+                  "Roberto Morabito",
+                  "Hiroshi Doyu",
+                  "Anastasia C Diseth",
+                  ], index=0
+    )
+    binum = cols[1].text_input("Backlog item # (meeting=='0'):")
+    cols = st.columns(2)
+    date = cols[0].date_input("work date:")
+    hours = cols[1].slider("Time spent (hours):", 1., 7.5, step=0.5)
+    comment = st.text_area("Comment:")
+    submitted = st.form_submit_button(label="Submit")
+
+if submitted:
+    pr.append([[author, binum, hours, str(date), comment]])
+    st.success("Thanks! Your time was recorded.")
+    st.balloons()
+
+expander = st.expander("See all records")
+with expander:
+    st.write(f"Open original [Google Sheet]({GSHEET_URL})")
+    st.dataframe(pr.get())