Editor sync handling

[MarcelGeo]

Resolves #MerginMaps/qgis-plugin

Details

Added ➕

• Introduce push handling for editors to improve UX
• Introduce editor module to filter changes in push operation and checking if prevent create conflicting copy

Refactor 🔨

• do lazy loading of metadata in method _read_metadata not in every getter
• consider to create executor in constructor or be able to set it with method of Job

❓

• @wonder-sk - do we want to do rotation of logs in project directory?
• do we want to handle only QGIS files for editor as mentioned in issue, because in this PR are checking all types of files (gpkg, qgs, mergin-config) - we can change this behavior in editor.py

[coveralls]

Pull Request Test Coverage Report for Build 9345009734

Details

• 149 of 155 (96.13%) changed or added relevant lines in 7 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.5%) to 79.085%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
mergin/merginproject.py	15	17	88.24%
mergin/test/test_client.py	82	86	95.35%

Totals
Change from base Build 9272059448:	0.5%
Covered Lines:	3165
Relevant Lines:	4002

---

💛 - Coveralls

[wonder-sk]

Looks good to me, thanks! 👏

(commented only minor stuff)

[wonder-sk]

I would prefer to keep the direct call to job.mp.apply_pull_changes() instead of introducing a new method in PullJob (it is meant just as a structure to keep everything that is needed for a pull)

[wonder-sk]

do we want to do rotation of logs in project directory?

probably not, it did not seem to be an issue even with projects with heavy use - and when sending logs to developers, we limit upload size (0.5 mb max if I recall correctly)

do we want to handle only QGIS files for editor as mentioned in issue, because in this PR are checking all types of files (gpkg, qgs, mergin-config)

what's in the PR looks correct to me, the issue description was not complete...