Convert update changelog to markdown

Looks better without HTML tags everywhere.

.github/workflows/workflow.yml

@@ -15,7 +15,7 @@ jobs:
             - name: Install dependencies
               run: |
                 python -m pip install --upgrade pip
-                pip install -r requirements.txt flet
+                pip install -r requirements.txt flet markdownify
 
             - name: Flet build windows
               run: |

gui.py

@@ -1,5 +1,6 @@
 import flet as ft
 import probe
+from markdownify import markdownify as md
 
 def main(page: ft.Page):
     prober = probe.Prober()
@@ -11,7 +12,7 @@ def start_probe(e):
             update_info.value = "An update is available!"
             downloadBtn.disabled = False
             update_dlg_btn.disabled = False
-            update_dlg.content = ft.Text(prober.get_update_desc())
+            update_dlg.content = ft.Markdown(md(prober.get_update_desc()))
         else:
             update_info.value = "No update is available."
             downloadBtn.disabled = True
@@ -30,7 +31,7 @@ def page_resized(e):
     page.on_resized = page_resized
 
     update_dlg = ft.AlertDialog(
-        title=ft.Text("Update changelog"),
+        title=ft.Text("Update changelog", text_align=ft.TextAlign.CENTER),
         on_dismiss=lambda e: print("Dialog dismissed."),
     )