Fix/file deletion

[Kanahiro]

Issue

close #69

変更内容:Description

• replace deletion for specific filename with using temp-dir and remove it at once
• chore: move label-export-logic into translator.vector.label

テスト手順:Test

• try export project including some type of rasterlayer

その他:Notes

• 特になし

[bordoray]

Temp file deletion -> OK

labels -> error

2023-07-14T11:03:27     WARNING    Traceback (most recent call last):
              File "C:\Users/lay_m/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\plugx_plugin\ui\main_dialog.py", line 87, in _run
              generate_label_json(
              File "C:\Users/lay_m/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\plugx_plugin\translator\vector\label.py", line 13, in generate_label_json
              label_layer = processing.run(
              File "C:\PROGRA~1/QGIS32~1.5/apps/qgis-ltr/./python/plugins\processing\tools\general.py", line 108, in run
              return Processing.runAlgorithm(algOrName, parameters, onFinish, feedback, context)
              File "C:\PROGRA~1/QGIS32~1.5/apps/qgis-ltr/./python/plugins\processing\core\Processing.py", line 181, in runAlgorithm
              raise QgsProcessingException(msg)
             _core.QgsProcessingException: Unable to execute algorithm
             Could not load source layer for INPUT: invalid value

[Kanahiro]

thanks, fixed it