ALEHover text not appearing in floating preview

## Information

**VIM version**

NVIM v0.9.0

Operating System: macOS

## What went wrong

`g:ale_hover_to_floating_preview` doesn't seem to be working for `:ALEHover`

From the help docs:

> When using Neovim or Vim with popupwin, if g:ale_hover_to_floating_preview or g:ale_floating_preview is set to 1, the hover information will show in a floating window.

## Reproducing the bug

My minimal vimrc:

```vim
set runtimepath+=$HOME/.vim/bundle/ale
let g:ale_hover_cursor = 1
let g:ale_hover_to_floating_preview = 1
```

1. Use the vimrc above
2. Open a TypeScript file
3. Move cursor over a variable
4. Notice the `:ALEHover` info shows in the echo line, not in the floating preview

I tried doing `:ALEDisable | ALEEnable` to reload the settings, but this doesn't help.

I'm also not sure why these settings aren't showing up in `:ALEInfo`?

### :ALEInfo

Expand

 Current Filetype: typescriptreact

Available Linters: ['cspell', 'deno', 'eslint', 'standard', 'tslint', 'tsserver', 'typecheck', 'xo']

  Enabled Linters: ['eslint', 'tsserver']

  Ignored Linters: []

 Suggested Fixers:

  'remove_trailing_lines' - Remove all blank lines at the end of a file.

  'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.

 Linter Variables:

 Global Variables:

let g:ale_cache_executable_check_failures = v:null

let g:ale_change_sign_column_color = 0

let g:ale_command_wrapper = ''

let g:ale_completion_delay = v:null

let g:ale_completion_enabled = 0

let g:ale_completion_max_suggestions = v:null

let g:ale_disable_lsp = 0

let g:ale_echo_cursor = 1

let g:ale_echo_msg_error_str = 'Error'

let g:ale_echo_msg_format = '[%linter%/%severity%] %s'

let g:ale_echo_msg_info_str = 'Info'

let g:ale_echo_msg_warning_str = 'Warning'

let g:ale_enabled = 1

let g:ale_fix_on_save = 0

let g:ale_fixers = {'typescript': ['eslint', 'prettier'], 'typescriptreact': ['eslint', 'prettier'], 'json': ['prettier'], 'javascript': ['eslint', 'prettier'], 'css': ['stylelint'], 'javascriptreact': ['eslint']}

let g:ale_history_enabled = 1

let g:ale_history_log_output = 1

let g:ale_keep_list_window_open = 0

let g:ale_lint_delay = 200

let g:ale_lint_on_enter = 1

let g:ale_lint_on_filetype_changed = 1

let g:ale_lint_on_insert_leave = 1

let g:ale_lint_on_save = 1

let g:ale_lint_on_text_changed = 'normal'

let g:ale_linter_aliases = {}

let g:ale_linters = {'mustache': ['ember-template-lint'], 'typescript': ['eslint', 'tsserver'], 'scss': ['stylelint'], 'typescriptreact': ['eslint', 'tsserver'], 'javascriptreact': ['eslint'], 'json': ['eslint'], 'html': ['pa11y'], 'handlebars': ['ember-template-lint'], 'javascript': ['eslint'], 'css': ['stylelint'], 'markdown': ['proselint']}

let g:ale_linters_explicit = 0

let g:ale_linters_ignore = {}

let g:ale_list_vertical = 0

let g:ale_list_window_size = 10

let g:ale_loclist_msg_format = '[%linter%/%severity%] %s'

let g:ale_max_buffer_history_size = 20

let g:ale_max_signs = -1

let g:ale_maximum_file_size = v:null

let g:ale_open_list = 0

let g:ale_pattern_options = {'ControlP': {'ale_enabled': 0}}

let g:ale_pattern_options_enabled = v:null

let g:ale_root = {}

let g:ale_set_balloons = 0

let g:ale_set_highlights = 1

let g:ale_set_loclist = 1

let g:ale_set_quickfix = 0

let g:ale_set_signs = 1

let g:ale_sign_column_always = 0

let g:ale_sign_error = '◆'

let g:ale_sign_info = '𝓲'

let g:ale_sign_offset = 1000000

let g:ale_sign_style_error = '⇝'

let g:ale_sign_style_warning = '⇢'

let g:ale_sign_warning = '◇'

let g:ale_sign_highlight_linenrs = 0

let g:ale_statusline_format = v:null

let g:ale_type_map = {}

let g:ale_use_neovim_diagnostics_api = 0

let g:ale_use_global_executables = v:null

let g:ale_virtualtext_cursor = 'all'

let g:ale_warn_about_trailing_blank_lines = 1

let g:ale_warn_about_trailing_whitespace = 1

  Command History:

(executable check - success) yarn

(finished - exit code 0) ['/bin/bash', '-c', 'cd ''/Users/xxx/Code'' && ''yarn'' eslint -f json --stdin --stdin-filename ''/Users/xxx/Code/test.tsx'' < ''/Users/xxx/tmp/nvim.xxx/NFKavt/1/test.tsx''']

<<>>

[{"filePath":"/Users/xxx/Code/test.tsx","messages":[],"suppressedMessages":[],"errorCount":0,"fatalErrorCount":0,"warningCount":0,"fixableErrorCount":0,"fixableWarningCount":0,"usedDeprecatedRules":[]}]

<<>>

(executable check - success) .yarn/sdks/typescript/bin/tsserver

(started) ['/bin/bash', '-c', '''.yarn/sdks/typescript/bin/tsserver''']