Allow Markdow to format text content of device configs (#149)

Addresses #106 

You can add emphasis by making text bold (** or __), italic (* or _) or
both (*** or ___) now. (asterisk is preferred)

To add paragraphs of lists you need to add two or one empty lines
inbetween. Example
```yaml
- type: call_button
      content: >
        As a first step, you need to unlock the bootloader. A bootloader is the piece of software, that tells your phone
        

        - how to start and run an operating system (like Android). Your device should be turned on.

        - Press 'Confirm and run' to reboot into the bootloader.
      command: adb_reboot_bootloader
```

openandroidinstaller/installer_config.py

@@ -98,7 +98,7 @@ def from_file(cls, path):
 
 def _find_config_file(device_code: str, config_path: Path) -> Optional[Path]:
     """Find the config file which is supported by the given device code."""
-    for path in config_path.rglob("*.yaml"):
+    for path in config_path.glob("*.yaml"):
         with open(path, "r", encoding="utf-8") as stream:
             try:
                 raw_config = dict(yaml.safe_load(stream))

openandroidinstaller/styles.py

@@ -27,4 +27,9 @@ class Markdown(ft.Markdown):
     """Markdown element to replace the markdown element from flet but is selectable."""
 
     def __init__(self, *args, **kwargs):
-        super().__init__(selectable=True, *args, **kwargs)
+        super().__init__(
+            selectable=True,
+            on_tap_link=lambda e: self.page.launch_url(e.data),
+            *args,
+            **kwargs
+        )

openandroidinstaller/views/select_view.py

@@ -84,7 +84,6 @@ def init_visuals(
 replacing the firmware of the device with a completely custom ROM.
 
 OpenAndroidInstaller works with the [TWRP recovery project](https://twrp.me/about).""",
-                on_tap_link=lambda e: self.page.launch_url(e.data),
             ),
             actions=[
                 TextButton("Close", on_click=self.close_close_explain_images_dlg),

openandroidinstaller/views/step_view.py

@@ -31,6 +31,7 @@
 
 from styles import (
     Text,
+    Markdown,
 )
 
 from views import BaseView
@@ -119,7 +120,7 @@ def check_advanced_switch(e):
             )
         ]
         self.right_view.controls = [
-            Text(f"{self.step.content}"),
+            Markdown(f"{self.step.content}"),
         ]
         # basic view depending on step.type
         logger.info(f"Starting step of type {self.step.type}.")