refactor: replace custom CRM with Monica fork

.github/ISSUE_TEMPLATE/Bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+(Note: you don't need to follow this template, nor to keep headlines or bold sentences - they are just there to guide you. Feel free to delete everything. We review every issue even if we don't immediately respond.)
+
+Thanks for filing an issue and for your interest in the project.
+
+**Describe the bug**
+A clear and concise description of what the bug is. If your comment is `it doesn't work`, we won't know what to do with it.
+
+**Screenshots**
+If you can, add screenshots to help explain your problem. An image is always helpful.
+**Which version are you using:**
+ - Hosting version on https://app.monicahq.com
+ - Mobile version
+ - A server you maintain yourself (if so, please indicate your current version of Monica)
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/Feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+(Note: you don't need to follow this template, nor to keep headlines or bold sentences - they are just there to guide you. Feel free to delete everything. We review every issue even if we don't immediately respond.)
+
+Thanks for filing an issue and for your interest in the project.
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex.
+* I'm always frustrated when [...]
+* Current feature X is awesome but doesn't fill the need of [...]
+* Monica doesn't have feature X which is essential as [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered (optional)**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here. The more context, the better.

.github/ISSUE_TEMPLATE/General_issue.md

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+---
+name: Feedback
+about: If you want to leave a general comment
+
+---
+
+(Note: you don't need to follow this template, nor to keep headlines or bold sentences - they are just there to guide you. Feel free to delete everything. We review every issue even if we don't immediately respond.)
+
+Thanks for filing an issue and for your interest in the project.
+
+If your issue is about a feature request, tell us why you need it.
+
+If your issue is about a bug, please be as precise as possible in describing it.