✨ Add all github languages

[saglaniharsh]

FIX #10
I've added all the github languages on this page

But as your todo suggests, it would be better if we implement autocomplete combo box.
I tried a lot ( I have no experience in TypeScript and react ) but I couldn't figure out what the errors were.

Steps I took:

1. Upgrade material core and include ``material lab``` for autocomplete
2. Since we upgraded material core we need to change the syntax of StyleRulesCallback something like this:

import {
  StyleRulesCallback,
  Theme
} from "@material-ui/core/styles";
  .
  .
  .

const styles: StyleRulesCallback<Theme,Props> = _ => ({
  .
  .
  .
});

3. Make a function return all the languages in a group as github shows

export function Grouped() {
  function handleInputChange(event,value){
    console.log(event); // required as we need value and it will throw error that event is not read
    window.location.href = `/?language=${value.value}`;
  }

  return (
    <Autocomplete
      id="language"
      options={languageOptions}
      groupBy={option => option.type}
      getOptionLabel={option => option.name}
      style={{ width: 300 }}
      onChange={handleInputChange}
      renderInput={params => <TextField {...params} label="Select Language" variant="outlined" />}
    />
  );
}

4. Instead of <FormGroup> use {this.Grouped()}

this is supposed to be it but I faced a lot of problems.

Problems I faced:

1. dependency issue of material lab and material core
2. implementing inputProps property in Autocomplete as in MenuItem
3. changing syntax of StylesRulesCallback
4. setting value of Autocomplete to language passed
5. This error that I couldn't figure out

  Overload 1 of 2, '(props: Pick<PropsWithChildren<Props>, "language" | "children" | "fetchedRepositoryCount" | "totalRepositoryCount"> & StyledComponentProps<string> & Props, context?: any): ReactElement<...> | Component<...>', gave the following error.
16:23:26.613
    Property 'classes' is missing in type '{ language: string; fetchedRepositoryCount: number; totalRepositoryCount: number; }' but required in type 'Props'.
16:23:26.613
  Overload 2 of 2, '(props: PropsWithChildren<Pick<PropsWithChildren<Props>, "language" | "children" | "fetchedRepositoryCount" | "totalRepositoryCount"> & StyledComponentProps<string> & Props>, context?: any): ReactElement<...> | Component<...>', gave the following error.
16:23:26.613
    Property 'classes' is missing in type '{ language: string; fetchedRepositoryCount: number; totalRepositoryCount: number; }' but required in type 'Props'.
16:23:26.613
    81 |   return (
16:23:26.613
    82 |     <Paper elevation={1} className={classes.paper}>
16:23:26.613
  > 83 |       <Header
16:23:26.613
       |        ^
16:23:26.613
    84 |         language={language}
16:23:26.613
    85 |         fetchedRepositoryCount={repositories.length}
16:23:26.613
    86 |         totalRepositoryCount={repositoryCount}

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