chore: adjust gitgnore and remove python script that generates icon file

.gitignore

@@ -3,4 +3,3 @@ cmake-build-debug
 .idea
 .vscode
 .history
-src/qml/resources/*.js

lib/generateMaterialDesignJs.py

@@ -1,41 +0,0 @@
-#!/usr/bin/env python3
-
-import math
-import re
-
-print("Generating MaterialDesign.js")
-
-# open css file from submodule
-css = open("materialdesignicons/css/materialdesignicons.css")
-print("Got css file!")
-
-# lines to be written to js file
-lines = ["var icons = {"]
-
-
-# function to get the surrogate pair for js
-def get_surrogate_pair(astral_code_point: int) -> tuple:
-    high_surrogate = math.floor((astral_code_point - 0x10000) / 0x400) + 0xD800
-    low_surrogate = (astral_code_point - 0x10000) % 0x400 + 0xDC00
-    return str(hex(high_surrogate)).replace("0x", "").upper(), str(hex(low_surrogate)).replace("0x", "").upper()
-
-
-for line in css:
-    if "::before" in line:
-        next_line = next(css)
-        if "content:" in next_line:
-            # found an icon
-            icon_name = re.findall(r"mdi-[a-z-]+", line)[0].replace("-", "_")
-            content_line = re.findall(r"\\[A-Z0-9]+", next_line)[0]
-            hex_code = int(content_line.replace("\\F", "0xF"), 16)
-            surrogate_pair = get_surrogate_pair(hex_code)
-            js_pair = "\\u" + surrogate_pair[0] + "\\u" + surrogate_pair[1]
-            # add icon line to js lines
-            lines.append("  " + icon_name + ": \"" + js_pair + "\",")
-
-lines.append("}")
-
-# save to src js file
-new_file = open("../src/qml/resources/MaterialDesign.js", "w")
-for line in lines:
-    new_file.write(line + "\n")